Articles and Blog Posts by Appsterdam and friends. (if 'nothing found', we have restarted the syndication... check in a day or so)

posted September 12 2012
on bolot

Big Nerd Ranch in Amsterdam, Sept 2012

Big Nerd Ranch is participating in a few interesting events in Amsterdam mid-September 2012:

First, we’re part of the Appsterdam App Ecosystem Tent at the PICNIC'12 festival. Come see our talk Perpetuum Mobile: Myth or Revolution on Monday, September 17 at 15:00. Mikey Ward (@wookiee) is leading the guru session titled Beyond Touch: Attitudes in Motion on Tuesday, September 18 at 11:00.

Second, we’re presenting a workshop for iOS and Mac developers together with Apple in the morning of Wednesday, September 19. Developers can register here. Follow @bignerdranch for additional announcements.

Here are the titles/abstracts of our PICNIC'12 presentation and guru session.

Perpetuum mobile: myth or revolution?

Three quarters of the world population have access to mobile phones. The number of smartphones alone topped 1 billion. New uses of mobile technology offer hope in curing diseases and making the world a better place. Mobile devices empower users and app makers. But has the mobile revolution happened yet?

Beyond Touch: Attitudes in Motion
Guru Session

Touch screens are indispensable for modern smartphones. However, they contain many other sensors that could greatly enrich the user experience. Learn how to tame Core Motion, measure attitude (yaw, pitch, and roll), and put them to good use in your mobile apps. iOS programming experience is required. Bring your own laptop with Mac OS X 10.7 or 10.8, Xcode 4.4, iOS 5 SDK, and membership in the iOS developer program (to allow running apps on the device). This guru session will be led by Mikey Ward, with Bolot Kerimbaev and Stijn Oomes assisting.

posted September 05 2012
on Appsterdam SF

How to Implement an Incremental Store in iOS

Join us for our next Appsterdam SF event on Sept 19.

How to Implement an Incremental Store by Matt Vaznaian from StackMob.

Implementing an Incremental Store:
Core Data, Apple’s object graph and data persistence framework, is an iOS developer’s recommended choice for local storage of an application’s data. Recently at StackMob we decided to redesign our SDK and chose Core Data as the foundation.  In this session, I’ll share how StackMob implemented a full Incremental Store, giving developers the ability to use Core Data while it directly accesses and persists data to StackMob’s mobile development platform via a REST-based API.
Matt’s Bio
After finishing his Computer Science degree at UC Berkeley, Matt found himself developing prototypes in the collaboration space at Cisco Systems.  It was here where he got started with iOS development.  Looking to take on new challenges, Matt pursued an opportunity to work at StackMob, a mobile development platform.  As the lead iOS developer, he took on the project of redesigning and their iOS SDK, focusing on robust functionality and ease of use.  He strives to take on new technical and design challenges as he iterates on and improves the SDK.  Living in beautiful San Francisco, Matt spends his free time exploring and enjoying all the great bars, restaurants and recreation the city has to offer.
Twitter @_mattvaz
StackMob is going to have office hours from 5:00 – 6:30 pm so people can come to the office and talk to their engineers. Register here.
After StackMob’s office hours our meet up starts with the usual schedule:
  • 6:30 Networking
  • 7:00 Presentation and Q&A
  • 8:00 Wrap up
Please RSVP in our meet up page.
We hope to see you again.

Avatar of Olga skp posted September 05 2012
on Olga skp

AppsterdamGR: Strengthening our ties

Fellow Greek App Makers, 

Last week we were in Athens and joined the 2nd Athenian Meeten and Drinken. Most of the people we met during our time in Greece were there. Others randomly appeared, and some jumped into an airplane to be there just for the night. The event was successful, more than 40 people showed up, had a talk, and shared their thoughts and views. 

We visited Greece for vacations, but while we were there we could not keep ourselves from meeting you. We wanted to let you know about what is happening in Amsterdam, to show you how the Appsterdam community works and to provide you with all the infrastructure and experience we have about setting-up a network organization and grass-roots initiative. Despite the skepticism and second thoughts some of you may initially have had, we think that it worked. We all enjoyed our night and we all made new friends.

But what is coming up next?
Attending to such an event is only the beginning. It is only a way to prove that you are there, that the tech scene in Athens is vibrant and open to new ideas and collaborations. Continuing meeting on a weekly basis will strengthen your community and help us keep in touch with you.

We would like to keep the conversation with you alive, to have a strong Greek community with which we can share our knowledge, send people over and receive people that would like to visit us for a while. We would like to leverage the Greek start-up scene, empower indies and support those who are interested in working with technology, either by helping them partnering-up with people from the tech scene or by amplifying their skills. 

We do that for the same reason we did it here in Amsterdam. Because we want to reinvent our working, social and tech environment, to make it a place where we want to live and work. Appsterdam does not offer a job, it does not offer money and it will not try to convince you on what technology or platform to use. 

The Athenian Embassy is what you will make it to be - it will support and enable any initiative, any idea that is stemming from the community. It will grow organically, along with the people that will bring it to life.

We hope you meet your peers at the Meeten and Drinken tonight, at Tazza D'oro, and to keep in touch with you all!

Follow us on Twitter @AppsterdamGR

See post updates on theFacebook page.

posted September 04 2012

InnoViz has started mining data. This graph shows information…

InnoViz has started mining data.

This graph shows information about how technology makers describe themselves on their Appsterdam Meetup profile page.

Each node represents a word that is used, the lines between nodes show how often words co-occur in texts. Each node is color coded. Green stands for a platform, orange stands for a word that is linked to a business, blue indicates a term expected from a developer and red is a term from the design perspective of an app. The thickness of a line shows how often two words occur together in a profile description. 

Join us at PICNIC (17-18 September) for a text analysis and word visualization workshop at the App Ecosystem Tent.

More information will be announced soon.

Avatar of Klaas Speller posted August 27 2012
on Klaas Speller

An Update From Greece

A while back I posted a Call To All Greek App Makers. The response so far has been great. There are many very lively tech and startup groups in Greece and people are very open to the story of Appsterdam.

Greece So Far

My trip through Greece has brought me from Thessaloniki to Chalkidiki, Athens and the Islands of Amorgos, Koufonissi and Donousa.

When I arrived in Thessaloniki a few weeks ago I had no idea if there would be a tech community in Greece.

But everywhere I went I’ve met people who are working on Apps, Design and other creative business. I have met people from the Python and Ruby community (the next Euruko will be in Athens), people from the startup scene and a whole bunch of mobile developers and many, many others.

I have had the opportunity to talk to Greek founders and owners of small businesses, employees and freelancers – living in Greece and abroad. It has been a great experience listening to their thoughts and feelings about the current situation and it has been inspiring to share ideas.

The quality of the products and operations I have seen here has been impressive. The level of skill is high and ethos is amazing.

This Week

Coming Wednesday, August 29th, we will host the Appsterdam Meeten en Drinken event at Tazza D’oro in Athens (see map below). We start at 21:00 EEST and will carry on till the last one leaves. So please drop by for a drink and a chat.

The rest of the week I will be in Athens and will be meeting more people and companies. If you would like to grab lunch or a coffee, let me know and we will arrange a time and a place.

I am looking forward to meeting everybody.

View Larger Map
posted August 09 2012
on Robert Atkins

How to bike in Amsterdam

I have never been a cycling enthusiast. Before I first went to Burning Man in 2007 I’d barely ridden a bike since my adolescent BMX. But one of the many awesome things about cycling in Amsterdam is that you don’t have to be an enthusiast.

The only thing better than a great public transport system is one you barely have to use, and this is one of the foremost advantages to living and working in Amsterdam. Even though as a city it has everything, it’s geographically small enough that everywhere you’d want to go is within a twenty minute cycling radius of the city centre. It’s so easy, convenient and safe you’d be crazy to not have a bike as your main mode of transport.

Buying a bike

I wouldn’t know a chainring from a seat post, so take my advice with a grain of salt. I’m just sharing what I’ve learned about buying and riding a bike in Amsterdam over the last three months.

Firstly, for regular city riding, you want an “omafiets” or “granny bike"—single gear and back brakes. Amsterdam really is so flat that gears are unnecessary and frankly a bit of a pain in stop-start city traffic. Similarly, back brakes are simple, low maintenance and avoid another cable which would otherwise snag in the nest of bikes you’ll find yourself parking in. A big padded seat and upright riding position make for comfort and a rack on the front for a crate of beer will make you friends that you can then dink on the rack on the back.

If you want a really cheap one you can get something serviceable like the above from the Waterlooplein markets with front and rear lights and a chain included for €80, but don’t do that. I did, twice, and it’s a bad idea for two reasons: firstly, when you look closer you’ll see that an €80 Omafiets is cobbled together out of spray painted rust and hope and eventually parts will get loose and wobbly and you don’t want to deal with that while fanging it down Vijzelstraat post-borrel.

Keeping your bike

The second reason to spend more is that cheap locks don’t. I locked my two-week old bike in front of a café and sat down to wait for a fellow Appsterdamer to arrive; while doing so I saw someone take a bright red chain off a generic-looking omafiets and thought to myself, "That’s a really bright red chain, kind of like mine” as he casually rode off.

Half an hour later when I went to get on my bike to leave, I believe I may have said a rude word.

You have to pay at least €40 to get a lock worth buying. The problem with really cheap locks is there are only about a dozen possible keys for each model and they’re easily defeated. But that’s still not enough. You need two: a chain AND a wheel lock on the back wheel. These are quick to lock and unlock and operable with one hand, but using one by itself is inviting a long walk home.

Or, in my case, since my second bike was locked only with a €15 wheel lock when it was stolen from outside my house one night, a long walk to wherever I had to go the next morning. I managed to hang on to that one for a whole week. Not that I’m bitter or anything.

So, a chain through the frame and wheel and around something that terminates a foot into concrete, plus a wheel lock on the back wheel are necessary to ensure your steed stays where you left it. If a thief wants your bike they’re still going to defeat both of those in a minute, but if they just want a bike they’ll look for something that’ll only take thirty seconds. A sucker’s bike like either of mine, for instance. “I don’t have to outrun it, I just have to outrun you”.

This is the main reason I’d never buy an €80 omafiets again. I’d feel stupid spending the same amount on locks as I did the bike. Might as well spend €200 all up and get something more solid and reliable.


Get front and rear lights for riding at night or in the (plentiful!) rain. These are more for visibility than as headlights, so you don’t need anything fancy. Simple (cheap!) battery operated LED lights are better than dynamos as they’re consistently bright, have no wires to snag and don’t sap any of your pedal power.

Not having done it (well, aside from the prei in the back rack of the first bike I had nicked—yes, really!), next time I would seriously consider getting a can of electric pink spray paint and pimping my bike. This has two advantages: it makes it easier to find in a thicket of generic black omafietsen and the more distinctive it is, the less likely it is to be stolen.

But the most important bike accessory in Amsterdam is…


… a bell. Or air horn. No, LRAD. Possibly a sidewinder missile mounted to the front forks. By far the biggest hazard you will encounter as a cyclist in Amsterdam are the neverending supply of fresh tourists wandering into the bike lanes. You can tell how long they’ve been in town by their reaction upon hearing a bike bell. If they’ve only been there a day they will remain totally oblivious. If they’ve been there a week they’ll jump like they’ve been stung, possibly into oncoming traffic.

I didn’t manage to hit anyone while I was there but came close a number of times, especially coming down Damrak/Rokin, cycling past the Heineken brewery and around the intersections near the Rijksmuseum and the Vondelpark. Just be aware around popular areas and if all else fails, shout “Get out of zee bike lane, you silly tourists!” (in the manner and accent of a French taunt) and you’ll be OK.

Next most hazardous are tourists on bikes. Typically not regular cyclists or familiar with Amsterdam and sometimes even not used to riding on the right hand side of the road, they can be unpredictable and get in the way. Fortunately they’re easy to recognise as they’ll be riding a modern step-through style bike (not an omafiets) in red with “Mac Bike” written on the front. Keep your distance or give them a polite “notification ding” and they’ll pull to the right and allow you to pass.

You have nothing to fear from the local riders. If you do something silly, they’ll overtake glaring at you, shake their head and go on with their mobile phone conversation without the bar fridge perched in their front rack even wobbling.

The absolute last thing you have to worry about riding in Amsterdam is motor vehicles. Drivers know that any collision between a car and a bike is assumed to be their fault and the subsequent fine or criminal proceedings will ruin their life and they behave accordingly.

On yer bike!

So, that’s what I’ve learned about biking in Amsterdam: don’t cheap out too much (especially on the locks), lock the damn thing properly, customise for fun and bicycle retention, watch out for the tourists and have fun riding around the most practical cycling city in the world.

posted August 08 2012
on Appsterdam SF

Hackathon Success Stories: AirGuitar, GiveGo & FollowMe.

We are happy to announce our next Appsterdam SF event:

Hackathon Success Stories !

iOSDevCamp Revelation : Ronald Mannack with AirGuitar

AngelHack Winner : Cyrus Stoller with GiveGo

AT&T Hackathon Winner : Taylor Hoover with FollowMe

Come and join us to hear the stories of these very cool startups and their successful experiences at recent hackathons in the SF Bay Area. They’ll talk about their products, challenges and plans for the future.


StackMob is generously hosting this event again.

Their offices are located at 541 8th St, San Francisco, CA


  • 6:30 – 7:00 Doors Open (Networking)
  • 7:00 – 8:00 Presentations and Q&A
  • 8:00 – 8:30 Networking & Wrap up

RSVP Please at our Appsterdam SF meet up page

Mobile Developers, UI Designers, Hardware Engineers, Entrepreneurs, Investors and the mobile/web community are welcome to attend.

We hope to see you there and bring your questions.


Appsterdam SF


Avatar of Klaas Speller posted August 06 2012
on Klaas Speller

Calling All Greek App Makers

The coming weeks I will be in Greece. Besides enjoying the sun and great food I want to help setup a Greek Appsterdam Embassy in Athens, where we will be the last week of August.

In the week we are there, we will help you get connected with the Appsterdam community, the local university and businesses. We will give you tips and tricks on how to run a volunteer-based organization, and have a look at which events would work well in Greece and how to get them started.

On Wednesday, the 29th of August, we will have a Meeten and Drinken to officially launch the Embassy. If all goes well, we will open a live connection with the Amsterdam Meeten en Drinken so we can meet each other in most direct way, considering the distance.

In the days leading up to this I will be at your full disposal to help—but you don’t have to wait for us to appear.  Start now.

Meeten en Drinken

Appsterdam is a community and communities are made of people.

Although the internet allows us to connect and stay connected, there is no substitute for meeting each other in person.

We organize many events where people can come together and share thoughts, but none are as powerful as our weekly Meeten en Drinken.

It is important to have face time with your peers. Time to talk and share thoughts without a set agenda. This is how innovation gets stimulated and alliances get formed.

Meeten en Drinken is every Wednesday at 19:00, and is always at the same bar (or taverna). It would great if the first Meeten en Drinken of the Greek Embassy will take place on 22th of August or before.

You pick the place and start finding people who want to join. Let us know and we will help spread the word.

You will be amazed how powerful a room full of people with skills and ideas can be.

Appsterdam in the Sun

The Greek Embassy should be a hub for local talent—the place to be if you want to connect with your peers or find mentoring to become an App Maker—making the community visible and addressable.

One of the powerful things we provide in Amsterdam is an infrastructure allowing people to land in the city and have like-minded friends from the first day. People who will show them around, help them get setup, join them for dinner and drinks.

The Embassy should be a hub for international App Makers who would like to spend some time in a beautiful, sunny country with great food and people—and good wifi.

It should be a place where App Makers from all over the world come to spend some time working on their Apps, or recover from launching their products, while enjoying the pleasures of Greece. And while they are here, you get to drain all the knowledge from their brains.

They can help you get connected with clients abroad, share their network and knowledge—and they just might return the favor when you visit their home towns.

In other words, Appsterdam in the sun.

Who We Are Looking For

We are looking for App Makers and people who want to become or work with App Makers.

This means developers, designers, marketeers, project managers, lawyers, academics and anybody who can organize, create and get things done.

If you are working as an architect, painter or construction worker, but would like to get connected with an international crowd, we are looking for you.

If you want to get your hands dirty with programming, design or any other skill required to create and ship a quality digital product, you should get in touch.

Education is one of our biggest pillars. We share knowledge and educate each other. We have been doing this in Amsterdam, and we will be doing it in Greece.

Getting Organized

If you find yourself taking on the challenge of coordinating the Greek embassy here are some tips:

Get a buddy. You can not do it alone. Find someone to help.

Find a bar or taverna which will be the base of Meeten en Drinken—something not too crowded, with wifi. Make sure it is conveniently located and can be reached by public transportation.

Now start announcing. Twitter is a good way to start. We will make sure your tweets get amplified by retweeting from the @appsterdamrs account.

Start a blog with the details from the event, like location and other useful information. Perhaps write a post to introduce yourself and tell the world why you feel having a Greek Embassy is a good idea.

The first few times you meet it is a good idea to keep track of who shows up. Those are the people you are most likely be running the Embassy with. If you have an iPad, open a Notes or Numbers document and pass it around as a guestbook. Simple solutions are often the best.

But I Live In Thessaloniki!

If you can be in Athens while we are there, come over, help out and see how you can setup an Embassy elsewhere.

Knowing your fellow App Makers in different cities is a good thing, and we can use all the help we can get.

If you like to help remotely, I am sure we can find you something for you to do.

If you are a Greek App Maker living abroad, we would love to hear from you.

Get In Touch

If you want to help set up the Greek Appsterdam presence contact us. I can be found on twitter as @spllr , or send an email to

If you are not yet comfortable writing an email in English, no problem, we have Greek speakers in our organization. Just make sure the first sentence of your email is in English so we can identify what to forward.

I’m looking forward to meeting you all.

But The Crisis!

Yes, the crisis.

Read More About Appsterdam

About Appsterdam
Why we say App Makers
What is an app?

posted July 27 2012
on Dom Sagolla

Open Source Apps at iOSDevCamp 2012

At this year’s iOSDevCamp over 29 open source projects for iOS were released! We wish to celebrate all of them as they represent our core values of contribution, sharing, openess and “can do” attitude.

Here is a look at the teams and links to their code. Yes, go ahead, please take a peek at their code!

FilterKit – Winner, Best Open Source App
Developers: Alexa Andrzejewski, Justin Zhang, Matt Jarjoura,
Mohammed Jisrawi, Scott Tran
Source Code:
License: BSD
Project Page:

Everyone wants photo filters, but why should developers waste time recreating Instagram? FilterKit makes adding photo filters to your app as easy as dropping in a library and calling our customizable FilterKit filter picker. Unlike existing Open Source libraries, FilterKit offers everything developers need to add filters to their apps: a filter framework, filter picker, filter builder and filter gallery. FilterKit is designed to be technology-agnostic: Our base filters were built using the GPUImage library but we plan to support CoreImage filters and future libraries as well.


IntentKit – Winner, Best Developer Tool
Developers: Zac Bowling, Jonathan Dalrymple, Matthieu Lucas, Doug Mason,
Paul Mendros
Source Code:
License: iOS code MIT/X11, Web service AGPL 3.0
Project Page:

Our open source system provides dynamic app discovery and inter-app communication for iOS. You publish your applications Intents on The SDK will query these intents, caching where possible, and provide end users with a list of apps that support what the user wants to do. This works with both native and web apps and is nearly compatible with the Web Intents initiative. You have control over which apps your user sees, and this works with or without network access.


Taekwondo Kix – Winner, Best Educational App

Developers: Angie Wang, Maggie Wang, Jingwen Wang
Source Code:
License: GPL

Our app is for people who wish to train to become black belts. It includes notes and information needed for the test. It also embeds videos for all color belts. Check out the feature that allows you to view martial arts techniques (using open GL, still a work in progress).
Want to shop for gear? We have a link to the Adidas/eBay site for taekwondo gear.
In our next iterations the app will incorporate the ability to buy gear or donate to Taekwondo Kix.


TruckWiser - Winner, Best Commerce App

Developers: Nadya Gitkina, Nachiketas Ramanujam, and Andrey Tabachnik
Source Code:
License: LGPL

Food unites people, crosses boundaries, language and cultures. Ever tried finding good, cheap and interesting food that suits your taste buds? Enter TruckWiser. It’s an app that allows you to find cheap gourmet food from the food trucks nearby. Simply see, sense, search or filter for food by popularity, location and/or time.  The app also includes nutrition facts and an ingredient list about the food you are ordering.
One of our favorite features is the “scheduler” for the truck owner. Truck owners simply add their location and hours of operation. The coolest thing is that we made it open source.  So go ahead, get TruckWiser today.


MegaJam – Winner, Best Hardware

Developers: Dave Shanley, Alex Belliotti, Tyler Powers, Robert Corelett,
Kevin Steigerwald, Kris Pethtel
Source Code:
License: MIT
Project Page:

MegaJam is a portable PA system that links iOS devices with Bluetooth-enabled devices (like a Jambox) to create a megaphone. Want to broadcast a toast at the wedding without a fancy PA system — use MegaJam.


Tank or Die 2 – Winner, Best Game

Developers: Brad Smith and friends
Source Code:
License: TBA

It’s all kinds of cool. This multi-player shoot’em up video game tests your tank driving skills and pits you against other tanks. Use your iPhone as controller. This game can be played on the iPhone or Apple TV.


Dox on Box Reader – Winner, Best Reading App/Use of Beeline Reader

Developers: Daniel DeCovnick and Arshad Tayyeb
Source Code:
License: BSD + Attribution

Want to read faster? Try this app that extends Beeline functionality to your documents stored on Box (including Google Docs!). This iPad reader app includes pagination, linguistic tagging features and a dyslexic mode which renders text with fonts shown to aid dyslexics in reading.


Seuss Programmer – Winner, Most Promising

Developers: Cory Kilger, Mac Alnakari, Renu Punjabi, Joe Peter
Source Code:
License: BSD

Seuss Programmer is an interactive, child friendly IDE for the Seuss programming language. The app is intended to help teach kids beginner principles of programming.


Civ Orbis – Winner, Best Satellite App

Developers: Nelson Ferraz, Kris Markel, Robert Shepherd, Thomas Adelaar
Source Code:
License: BSD (pending)

Foursquare for the 16th century! Civ Orbis uses Civitates Orbis Terrarum, which may be the world’s first atlas, to explore the cities of  Europe as they existed in the 1500s.


JoyRide – Winner, Best Web App

Developers: Mark Stuart
Source Code:
License: MIT

Use your iOS device to drive through the magical obstacles of JoyRide.  This game was created with WebGL, DeviceOrientation, and Web Audio.  The real-time interaction was made possible using node.js and WebSockets.


iOSDevCompanion – Winner, Best Use of Blekko
Developers: Michael Hourigan
Source Code:
License: GNU

A simple iPhone app to display RSS feeds across the screen relevant to iOSDevCamp.


Magic 8 Ball – Winner, Most Magical Interaction

Developers: Greg Gerber, Nicholas Lum
Source Code:
License: ?

Magic 8 ball meets loaded dice! Everyone trusts the 8 ball, but they shouldn’t when it’s in your hands!


Puffin’ Puppets – Winner, Cuddliest

Developers: Matt Stanton and Vijay Selvaraj
Source Code:
License: BSD (with some LGPL deps)

In this kinetic app the user waves a stuffed animal (mascot) in front of the iPad to play soccer on the screen. Also available, turn off the game mode and just enjoy moving the clouds around by waving a toy or throwing a big beanbag.


Wake Up Happy – Winner, Warmest

Developers: Kayelyn Mann, Scotty Allen
Source Code:
License: MIT

This app is a programmable alarm clock that activates the towel warmer (through a webserver and raspberry pi) to  pre-warm your bath towels in time for your morning shower. Simply set a wake up time in the app and the towel warmer will turn on 1 hour before you wake up.  This app is easily transferrable to a coffee maker, too!


Chicken Dance – Winner, Sacrifice to the Demo Gods

Developers: Stacie Hibino, Anna Billstrom
Source Code:
License: MIT

Capture video and create random 7 second mash-ups of videos and songs. Create a gallery page and share with friends.



Developers: Vivien Park, Cindy Pavlinac, Martin Gregory, Warren Stringer
Source Code:
License: GPL

In this iPad video chat app you can draw your emotions on your chat buddy’s face. This app utilizes natural gestures of touch to invite genuine expression and meaningful connection.
The app provides a palette to create shared language of togetherness. We call it emotiffects!



Developers: Anders Borch, Daniel Byon, Austin Cooley and Rami Taibah
Source Code:
License: BSD

Stamps is an iOS library that gives developers the ability to integrate a real-face emoticon system. With Stamps users can create their own emoticons using the front-facing camera to capture their emotions. Then the user can express these emoticons as stamps on their friends posts. The library features a robust data layer which allows integration to various backends. We will be using Skydrive to store Stamps data for our demo and integrating the Stamps library into the Quilt ( iPhone application.



Developers: Jon Richards, Gwendolyn Richards
Source Code:
License: BSD

An educational app that helps you learn about the animal world of primates.


Air Guitar SDK

Developers: Ronald Mannak
Source Code:
License: Apache 2.0

In 2010 Ronald arrived in this country with just one suitcase and a dream to build the coolest Air Guitar device for the iPhone. In 2011 he raised $32K on Kickstarter; and in 2012 he shipped the first 700 units. Ronald received many requests from developers for access to our SDK. One problem: there wasn’t one to be had. That is, until 3am Sunday morning. Ronald created an open source SDK for developers to use his hardware in their games and apps. Basically, Air Guitar Move is an accelerometer, so developers now read accelerometer data from two hands (one being the iPhone). Imagine the cool interfaces possible with that. Minority report-like interface? Now possible. Super engaging guitar games? Now possible.


Moppets/Googly Glasses

Developer: Rudy Jahchan
Source code:
License: MIT

Play googly eyes with your kids remotely! Moppets is an app controlling virtual characters through their facial movements. This app was rapidly put together using iOS’ native facial detection (no OpenCV) and OpenTok to handle the remote calling. Eyes are kept in sync by finding the eyes in the captured video or stream TokBox image on the client side.



Developers: Ben Morse, Arjun Baokar
Source Code:
License: Apache

JoynMe is an app that makes it easier to get people together for spontaneous activities. Tennis anyone?



Developers: Jacob Relkin
Source Code:
License: BSD

DiscussionBook is an app that provides a simple Mail-like interface into the very messy world of Facebook Groups.


Where Was I?

Developers: Jay O’Conor, Tim Kokesh
Source Code:
License: CDDL

A.K.A. the “Hangover” app. Ever experience a wild & crazy night and need some help the next day in remembering the night before. This app can help tell you where you’ve been. After remaining in the location for a given period of time, the location is recorded. A region (geofence) is created around the user’s current location. When the user exits the current region, we once again look for the user to spend a period of time within any area. You can review on a Map View what those locations were where you spent any time, and see when you were there.



Developers: Shanthi Sivanesan
Source Code:
License: ?

Are you bored?  This app helps to suggest things to do based on time, location and rank. Pick an activity and enjoy!


Social Library for iOS5

Developers: Yusuke Kawasaki
Source Code:
License: MIT

SL5ComposeViewController class presents a view to the user to compose a post for both social networking services of Twitter and Facebook from iOS5.
It’s build with modern interface with no delegates but complete Handler blocks. SL5ActivityViewController class is super easy way to show a ActionSheet to dispatch. You don’t need to wait until iOS6 to implement a “Share” button.



Developers: Jonah Williams
Source Code:
License: MIT

Create your own set of gesture controls that “feel” like part of a consistent system. Caster is an experiment in using the frequency domain representation, and other transformations, of gesture inputs to trigger game controls.


Developers: John Brewer, Matthem Shopsin
Source Code:
License: BSD 3-clause

CVFunhouse is a framework that lets you easily write computer vision applications using the OpenCV library.  CVFunhouse takes care of all the work of getting image data from the camera and back to the screen, so you can focus on computer vision. The app is designed to be both a cool demo and a starting point for writing your own dedicated computer vision apps.


Developers: Masaki Yatsu
Source Code:
License: MIT

Bestmix is a simple implementation of iOS app and Rails-based backend integration. You can build your own iOS app and backend web API by extending it. They are connected with JSON REST API supporting pagination, HTTP caching, Core Data, OAuth2 and Facebook integration. It is similar to BaaS, but  it is easier to customize and add your own code.


Developers: Stephan Miller, Sage Herron
Source Code:
License: BSD

An action packed 2D scrolling WW1 dogfighting plane game.


Developers: Anuj Patel and Shajay Rumi
Source Code:
License: TBD

An eye checker app is a battery of tests to assess vision health. For example, the app tests the users ability to focus on and discern objects.

If you have a correction to this list, or attended iOSDevCamp 2012 and have open source to offer, please submit your updates to Christopher Allen (@ChristopherA). Please also feel free to send us project website links, video demonstrations, photos and stories about your weekend, we’ll add them to this post!


Avatar of g7morris posted July 25 2012
on g7morris

iOSDevCamp Appsterdam 2012

Civ Orbis wins “Best App from a Satellite Location” at the iOSDevCamp 2012.

A hard fought victory for the Civ Orbis team consisting of Nelson Ferraz, Kris Markel, Robert Shepherd and Thomas Adelaar.

“We wrote this app from scratch in less than 48 hours, during the iOS
Dev Camp in Amsterdam. I’d like to thank the Appsterdam team for the
organization of the event and all the support they provided during the
weekend. I’d also like to invite anyone interested in this idea to
join this open source project, and contribute with code, art,
knowledge or ideas.”
-Nelson Ferraz, Civ Orbis Team

“This was my first iOSDevCamp and I had an absolute blast. The idea of building an app in a weekend seemed outrageous at the beginning, but we all managed to pull it off. It helped that everyone I met was really cool (especially the organizers!) and the venue was well suited for collaborating with small teams. I can’t wait until the next one!”
-Kris Markel, Civ Orbis Team

The Jury was united in its opinion:

“We chose Civ Orbis because we liked the concept a lot: a map application that allows you to travel in time right at the spot where you are. We also loved the open character, integrating public data. Another plus was the fact that it promotes culture and history, of which we have a lot in Europe. And finally, the app itself is lovely, nice animations with great design. We hope that winning the iOSDevCamp stimulates Nelson and Kris to finish the app and ship it.”

What is iOSDevCamp?

iOSDevCamp is an annual not-for-profit gathering held in San Jose, CA (USA) to develop applications for iOS, including iPhone, iPad, and iPod touch, using both the native SDK and web standards

iOSDevCamp Amsterdam, graciously hosted by BounceSpace and emceed by Dirk de Kok (CEO of Mobtest), attracted over 50 local attendees for competition from Friday July 20th to Sunday the 22nd. The winner of the event was then selected to compete for the “Best App from a Satellite Location” against the iOSDevCamp Satellite of Sydney, Australia held at the same time.

From presenting the idea, getting enough audience votes, pulling together a talented team of strangers, coding nonstop to surviving on a full weekend of pizza; Civ Orbis beat out three other local teams and ultimately the international competitor, the iOSDevCamp Satellite of Sydney, Australia.

Civ Orbis representing the satellite iOSDevcamp Amsterdam in the iOSDevCamp 2012 hackathon won the honor of “Best App from a Satellite Location.” This award and its prizes given by iOSDevCamp in San Jose, CA were sponsored by

Even though not all of the teams won, everyone went home feeling energized, with a sense of camaraderie, and new friends. It is the hope of Appsterdam that this event inspires all attendees to continue with the further development of these apps, honing their craft of appmaking and to have a closer connection within the appmaking community.

What is Civ Orbis?

Nelson Ferraz’s explanation of the project:
Georg Braun (1541-1622) was a catholic cleric and topo-geographer that
lived in Cologne. From 1572 to 1617 he edited the Civitates orbis
terrarum, which contains dozens of maps of cities from all around the

This mashup of techniques from the 16th and 21th centuries allows the
user to find his position in the old maps while he walks on the
streets of cities like Amsterdam, Brugges and Cologne.

Kris Markel also explains:
App Description:
Civis Orbis will allow you to experience the cities of Europe as they existed in the 16th century. Using maps from the Civitates orbis terrarium, you’ll be able to explore and learn about Amsterdam, Cologne, and Brugge, with more cities on the way. As you visit each landmark in the cities and learn interesting historical facts, you be able to check in, share the experience with your friends, and see what others have posted. You also be able to select tours tailored to your interests in each city, so you’ll be sure to hit the highlights you want to see.

After hashing out the initial direction of the application with the full team, building the app came down to just Nelson and me, and neither of us are designers by trade. Nelson really stepped up to the plate and created the production assets we needed to provide the level of polish we wanted the app to have.

Staying focused was also key. We initially had a rather large feature list, but we pared it down to the bare minimum so we knew we would have something that was demo-worthy by Sunday afternoon. We actually wrapped up with about an hour to spare, so Nelson pushed for “just two more screens”. I was quite reluctant, but Nelson insisted and we actually pulled it off. I’m glad he pushed for it.

Check out the Teams and their Code on Github!

Civ Orbis (1st Place & Winner)
Nelson Ferraz, Kris Markel, Robert Shepherd and Thomas Adelaar

Beer Buddies (2nd Place)
Wybren van der Zee, Paul Wagener, Gyorgy Varadi and Marco Pizzichemi

Blues Buddies (3rd Place)
Valentina Rao, Ian Murray, Jerke van den Braak, David Kousemaker, David Pitts, Nadjib Amar and Sijmen Mulder

Samuel Colak, Francesco Mattia, Oskar Smith and Wesley De Groot

The Jury

Dirk-Jan Huizingh, CEO Peperzaken
Jelle Prins, Founder
Mike Lee, Mayor of Appsterdam
Dirk de Kok, CEO Mobtest

Appsterdam would like to thank:

  • The generous sponsors listed below for their help with providing drinks, snack, lunches and dinners for the teams, volunteers and attendees.
  • The satellite Sydney iOSDevCamp teams for rising to the challenge, making it a fun time full of light trash talk, Google Hangouts and more. We look forward to next year.
  • The brave teams of Civ Orbis, Beer Buddies, Blues Buddies and iGive who had the guts to submit ideas, withstand long hours, debugging code and stressful decisions.
  • The formidable jury of Mike Lee, Dirk de Kok, Dirk-Jan Huizingh and Jelle Prins

The Sponsors

Peperzaken Logo
AIM Logo     Bouncespace Logo



All pictures can be found on Flickr using “appsterdam” as the query or search tag.


All tweets from this event can be found using: #iosdevcampams & #iosdevcamp