I’m In – Event Planner

iOS – iMessage – September 2016

I’m In is an iMessage app that allows people to easily plan their next meetup. It is designed by Roy van Dooren and has been featured by Apple ever since the launch of the iMessage App Store, that came with the release of iOS 10. The app has been downloaded over 100.000 times worldwide. It is available in Dutch, French, German and English. With an in-app purchase, users can upgrade to premium to access more content and features, that makes it even more convenient to arrange their next meetup. The app is available in the App Store, you can find the project page here.


6-1 6-4 6-3 6-2


Skopei Mechanics

iOS – Spring / Summer 2016

The Skopei Mechanics app is an app that I developed while I was working at Skopei Digital, and is part of the Skopei apps suite. With the Skopei Mechanics app, mechanics can easily plan a service ticket and keep track of their activities digitally.  Some of its features include:


– Plan a service ticket
– See planned service tickets
– Check-in at a location
– Register mileage
– Keep track of repair progress
– Add components that have been used to the repair report
– Add comments whilst repairing an item
– Check out at a location and close ticket
– Report molest

The app is available in the App Store.


0x0ss-3 0x0ss-4 0x0ss-6 0x0ss-7


Skopei Ticketing

iOS – Spring 2016

The Skopei Ticketing app is an app that I developed while I was working at Skopei Digital, and is part of the Skopei apps suite. With the Skopei Ticketing app you can easily report your defects. Scan the barcode of the defect item and say what’s wrong with it.
– Search for items in Skopei applications using a QR- or barcode scanner
– Create service tickets
– Report defects
– Add photos and comments to a service tickets
– View a service ticket
– Edit a service ticket
– View a list of created service tickets

The app is available in the App Store.


0x0ss-8 0x0ss-10 0x0ss-11 0x0ss-9



iOS – Late 2015 – Summer 2016


The KNIP app makes it easy for people to manage their accounts and payments in sport clubs, festivals and events. People can create personal and shared accounts and can send and request valuta in an easy and convenient way. I developed the iOS app at Skopei Digital. It has been downloaded over 5.000 times and has a 5-star review on the Dutch App Store, where it was released.


0x0ss-15 0x0ss-14 0x0ss-12 0x0ss-13


Ear Piercing (2.x)

iOS, Android (native) – April – July 2015

The second version of the Ear Piercing app (see 1.x version below) aims to mostly improve the design and UX of the application. It is designed by Roy van Dooren. It adds support for the iPhone 6 and iPhone 6 Plus. The app will also be developed for Android (native) starting August 2015. This version of the app features in-app camera use and control, drag and drop functionality for adding studs to your photo and fancy UI-effects. It is localized for 9 different languages, including Russian. The app is available in the App Store and in the Google Play Store.


screen2  screen 4 screen 3

Screen Shot 2015-07-20 at 21.47.51


Hybrid (Android, iOS) – July 2015

Vitus is a platform that was invented and developed by my sister Semmie and I, with which people can find their match with pets based on their personal preferences and living environment (family members, housing, etc). It introduces ranked search for pets in animal shelters. We call the module “Matchmaker”, and it calculates a score for each pet, based on the answers you provide in a questionnaire used in different animal shelters. The pets with the best scores are then recommended to you. The platform currently offers over 500 adoptable pets, 250 ambassadors that support our cause and the Matchmaker has been used over 2.500 times already. Also, the project is non-profit. Recently I have developed apps for Android and iOS using the Ionic-framework. The app has a nifty graphics-component that uses the PIXI-library to render photos of pets at random speeds, rotation and direction throughout the screen (see first screenshot below).


500x500bb-80 500x500bb-80-2 500x500bb-80-3  500x500bb-80-5

Screen Shot 2015-07-20 at 22.51.24


Hybrid (Android, iOS) – July 2015

With Speedster, users can find places that offer fast WiFi around them. Perfect for finding a spot for remote working or for just enjoying a fast internet connection. Users can help others by testing WiFi speeds at places near them. They can connect to the venue’s WiFi and simply tap the speedometer to get started. The app was built in just two days and is available in the App Store and in the Google Play Store. For more information, please visit: https://launchkit.io/websites/7-Sc1Ob7PTY/

Speedster allows you to:

– Find the venue with the best internet connection near you
– Test the speed of the WiFi network of a venue — by sharing your results, you help the community —
– Get directions to the venue you selected
– Get important information of the venue like tips, venue capabilities and more, using Foursquare®
– Be part of a great new community for remote workers


750x1334ss-80 750x1334ss-80-2 750x1334ss-80-3 750x1334ss-80-4



Divid Logo


Hybrid (Android, iOS) – July 2014 – July 2015

DiviD is an app that was developed during a time span of one year at Foove. End of fall 2014, I took the lead in developing the application with a team of 4. The app has a lot of technically complex challenges, such as displaying very large interactive images (construction sheets) cross-platform, on mobile devices. It also features a offline / online syncing mechanism that allows users to work flawlessly in offline-mode. The app is currently available in the App Store and Google Play Store.

App Store Description:

DiviD is an innovative app that lets project managers, contractors and architects collaborate with all their project plans, specs and photos. Upload your PDF drawings to divide.com and they will automatically sync to all your teams devices in real time! Any markups you make can also easily be shared with everyone on your project.

* Always have the current set with you, no matter where you are
* Floor plan viewing
* Cloud based annotations and markups sync to the project team
* Automatic inspection points that sync and become searchable
* Quick field takeoff and estimating tools
* Take progress photos and pin them to your blueprints
* Automatic uploading and tracking of progress photos
* Construction management tools lie RFI posting and submittal distribution
* Assign defects / inspection points / snags directly to your project team members


IMG_2897 IMG_2898 IMG_2899 IMG_2900 IMG_2901


Whever icon


iOS (native) – Spring / Summer 2015

I joined the Whever team beginning of 2015 with the task of working on their iOS app and specifically the location-tracking of users. The app’s goal is to get people to be on time for meetings and it does that in a fun an clever way by using smart notifications, location-tracking of other invitees and gamification. You can read more about the app on their website: http://whever.co. The app is currently available in the App Store.

App Store Description:

“I’ll be there in 5”… Haven’t we heard that before? With Whever this is a thing of the past! Whever gets your friends to your meeting on time and shows you when they will arrive. Fun penalties for being late or rewards for being on schedule provide extra motivation to be on time for everyone.
Using Whever, you no longer have to worry about sharing where you want to meet up with your friends, finding out how to get there or waiting around not knowing when everyone will show up!

With Whever you:
– Get a notification when to leave in order to be on time
– See when everyone will arrive in the “Traveltime Tracker” in your meeting details
– Challenge your friends to be on time with a fun penalty or reward
– Get a notification about how you did and earn points for being on time to increase your punctuality level
– Easily invite email contacts from your contact book
– Fire up Apple navigation directly from the app



750x1334ss-80 750x1334ss-80-2 750x1334ss-80-3 750x1334ss-80-4 750x1334ss-80-5


moments icon


Android (native) – Winter 2014 – 2o15

Moments is an app developed by Everywhere.is. They hired me (through Foove) to do a rewrite of the codebase to make the app more robust and to implement background location-tracking. The app is currently available in the Google Play Store. For more information, you can visit Everywhere.is’ case study: http://everywhere.is/#/made/moments

App Store Description:

Any moment can have a location attached to it. Know exactly where you were when that life changing Facebook notification came through. When you took that important phone call, or even where you were last night after your big night out.

Your day is full of important events. So we keep track of them all on a gorgeous timeline. You can edit and share your day with friends and family and be sure that no great moment, day or night will ever be forgotten.

Moments gives you the option to automatically log your location, calls, texts, photos, videos and social networks. Just pick what you would like to be tracked and Moments will do the rest.


unnamed unnamed-2 unnamed-3 unnamed-4





Hybrid (Android, iOS) – Spring 2015

Myke is a prototype app that is built by Foove during a one-week hackathon in the spring of 2015. It is developed using Ionic with a team of 8. The app recommends users which festival(s) they should visit, based on what music they like and what their friends like and also features a social component by allowing you to organise a festival visit with your friends, or so called crew. The app was never released as it was a prototype only. Due to lack of funding, the app was never launched. It still might be developed some day. You can find more information about Myke on the website: http://mykeapp.com.


IMG_2902 IMG_2904 IMG_2903  IMG_2906




iOS (native) – March 2014

Ordr is a crowdsourced solution for ordering and delivery. Order whatever you want wherever you are and let people nearby get it and deliver it to you. Ordering has never been this easy. Ordr was built with a team of 4, in which I was mainly responsible for the back-end (API) and partially responsible for the iOS development. Due to lack of funding, Ordr was never released but it did reach Beta status. For more information, please visit: http://getordr.com


1.23  2.2 2.7





iOS (native) –  – 

Zooki is an iOS app that allows users to receive location-based offers through push notifications. The challenges in developing the app were its advanced user-tracking and the use of geo-fencing to deliver push-notifications to the user. Due to lack of funding, the app was never released but it reached Beta status.


Zooki Banner


Screen Shot 2015-07-20 at 22.03.57


iOS (native) – December

Fietscontrole – or Bicycle Traffic Control is an app that allows user to report traffic controls (mostly for bike lights). The app has limited functionality to make its use easy and straightforward. Users can report controls at their current location, check controls around them and say thanks to users that reported controls. The app had about 1.000 users at most and was shut down beginning 2014. It was only released in The Netherlands.


640x1136ss-80-2 640x1136ss-80-3 640x1136ss-80-4


Screen Shot 2015-07-20 at 23.00.28

Ear Piercing (1.x)

iOS (native) – December 2012

Ear Piercing allows users to try out studs on their ears. The app is developed for Studex Europe and has over 35.000 installs. Currently, version 2.0 is in development and will be releases by the end of July 2015. The app is currently available in the App Store.

App Store Description:

Love ear piercings, but want to try them out first? No problem!

Take a picture of yourself with your iPhone or iPad and try out our beautiful, 100% hypoallergenic studs and earrings. If your device does not have a camera built in, you can use existing pictures too. Ask for stores that use Studex ® instruments. It’s safe and clean, and with our patented System 75™ you’ll hardly feel it.
Only the best for your ears™ — from Studex, the world’s leading ear piercing brand.


640x1136ss-80-5 640x1136ss-80-6 640x1136ss-80-7 640x1136ss-80-8




Band Check

Ever been to a music lesson and wished you could accurately reflect on your own performance individually as well as within the group? For the AHK (Amsterdamse Hogeschool voor de Kunsten), Skopei Digital created a platform that does just that! With the help of our creative, friendly, and intuitive interface, students are able to evaluate their performance based on three qualitative fields: Hearing, Seeing, and Feeling. The app was developed in about a week (!) with a team of three and is built with the Angular.js framework as well as Angular Material. For more info, check out the case study at Skopei Digital:

HTML5 – Firebase – AngularJS – Angular Material – CSS3 – Early 2016


558b110916bc02d00ae16aaf01a9a5cb  b115284118c711db9e030878d20ccc25  6ddf9b93f9cfa9987672de307c91067f


Landgasthof Weisser Loewe 

http://lgwl.npsoftware.nl (preview), http://landhasthofweisserloewe.de
HTML5 – PHP – AngularJS – 2011, 2015

Together with Roy van Dooren, we developed the hotel’s website back in 2011. Recently on request of the customer, we developed an updated website that will be available shortly. The new website features a one-page website with multi-language support that is fully responsive. It’s built with AngularJS using the Angular Gulp Generator.


Screen Shot 2015-07-21 at 11.44.01 Screen Shot 2015-07-21 at 11.44.10 Screen Shot 2015-07-21 at 11.44.19 Screen Shot 2015-07-21 at 11.44.27 Screen Shot 2015-07-21 at 11.44.37



HTML5, NodeJS, MongoDB, Sass, 2014 – present

Vitus is a pet adoption platform that differs itself in the way you search for pets in different animal shelters. It uses ranked search to match pets with people’s preferences and needs. The database currently holds over 500 adoptable pets and its Matchmaker has been user over 2.500 times. Recently I have also developed a hybrid iOS and Android for the platform (see above). Vitus is a non-profit project and I will continue to develop the application. You can read more about the launch of the project in a blog post I wrote.


Screen Shot 2015-07-21 at 11.54.59 Screen Shot 2015-07-21 at 11.55.09 Screen Shot 2015-07-21 at 11.55.16 Screen Shot 2015-07-21 at 11.55.22 Screen Shot 2015-07-21 at 11.55.32



HTML5, NodeJS, Sequelize, AngularJS, Socket.io, Amazon SQS, Amazon SES, Amazon ElastiCache, Leaflet, Mollie payments – July 2014 – present

DiviD is a platform for operational team members and managers that I developed for Foove with a varying team of 4-6 members. In the winter of 2014 I was assigned Lead Developer for the project. I worked on the back-end (API, data model, etc) as well as on the front-end (AngularJS) website. You can find extended information about DiviD on their marketing website and you can read up on my work on the app in the section Apps (above).


Screen Shot 2015-07-21 at 12.04.37  Screen Shot 2015-07-21 at 12.04.51 Screen Shot 2015-07-21 at 12.05.05


We Listen – listen to music together

HTML5, Socket.io, NodeJS, Heroku, SoundCloud API – April 2013

WeListen allows users to create shared playlists using the SoundCloud API and listen to music together – at the same time. It also features automatically generated genre-based playlist that any user can join. These playlists also allow users to chat. The application was built in one week, as a proof of concept. Due to lack of time, it never reached a production-ready status. The app was noticed by SoundCloud and I had a chat with one of the engineers that was interested in the technology behind it.


WeListen screenshot 2 WeListen screenshot 3



WordPress, 2012 – present

This website is Studex Benelux’ B2C website. It is derived from earpiercing.biz, Studex Europe’s main consumer website. The website has over 5.000 visitors per month on average and uses a relatively large infrastructure. I’m in charge of the server maintenance, the website and translating it’s content that is distributed from Studex Europe’s main office. For more information, you can checkout my blog post.


Screen Shot 2015-07-21 at 14.45.01 Screen Shot 2015-07-21 at 14.45.09 Screen Shot 2015-07-21 at 14.45.15



Ear Piercing Web App

HTML5, Bootstrap, Flash, One-pager – 2014

I have developed a HTML5 desktop-equivalent of the Ear Piercing app that is available on iOS (see above) for Studex Europe. The app allows users to try out studs before buying them. Users can take a selfie through their webcam, or upload an existing photo. Once the studs are pierced, the user can save and / or share their photo on Facebook and Twitter.


Screen Shot 2015-07-21 at 14.51.55 Screen Shot 2015-07-21 at 14.52.25  Screen Shot 2015-07-21 at 14.53.00 Screen Shot 2015-07-21 at 14.53.12

Studex Benelux Webshop

OpenCart 2.x, PHP, Custom Modules – 2014

For a more in-depth description and overview of this project, please check out my blog post.

G-Star Raw Racing Team

WordPress – 2011

A friend of mine and me developed G-Star Raw Racing Team’s website in just 8 days. It’s a WordPress-based custom themed website that has a special component for uploading media and content.


Screen Shot 2015-07-21 at 15.03.05 Screen Shot 2015-07-21 at 15.03.11 Screen Shot 2015-07-21 at 15.03.33

Petterz – Social network for pets

HTML, PHP, JavaScript, CSS, Google Chrome Web Store – 2008 – 2010

Petterz is an online social platform for pet owners and enthousiasts that features user- and pet profiles and timelines, media upload capabilities, a tip sharing outlet and much more. It was developed from the ground up, with a team of three, during my studies in Delft. It had about 5.000 users but showed not enough traction to continue developing the website. Someone wrote a nice article about what Petterz is and what it does that you should read if you want to know more about it.

Introduction Video:


HTML5 – 2008 – 2015

Ever since 2008, I’ve been developing and maintaining the website and updates for Studex Benelux. It is a B2B website that is currently under maintenance (new website will be launched soon!). Check back soon for an elaborated project update.