android apps

iBeacon & Eddystone Scanner

iBeacon Scanner is a small and simple app to quickly scan for iBeacons, AltBeacons and Eddystone beacons. It displays the important data about a beacon like the distance, the UUID, major and minor values and some more. A chart shows the RSSI values for a selected beacon. It's also possible to continously export the raw beacon data into a simple .csv file.

Since April 2015 it's one of the most popular iBeacon apps on Google Play (at least if you search for 'iBeacon', because there is no decicated category for that).

iBeacon & Eddystone Scanner is a collection of gum vending machines on a map, that you can edit.

Take a picture of a gum vending machine, upload it and take part in creating the worlds most complete map of gums. Or just browse the map and view stunningly beautiful pictures of an urban art form that's nearly lost.

This project wouldn't be possible without my friend Jonas, who shot most of the early pictures and coded the web app,, which led to this app.

Humans in Space

Pushington is an app for receiving collected push messages from various sources. It's focused on people who know how to do an POST request to an given URL. Like an devop who wants to be notified when the web server is not responding anymore.

It's coupled with an web app where you can edit and manage all the stuff you want to push to the app.

Pushinton is available at

Humans in Space


Humans in space is a single purpose app: it displays the humber of humans currently in space.

The idea for this popped up while talking to a friend in the half time of a local basketball match. We wondered how many people there are currently in space. After writing this app, we finally know!


web apps


This is the main web project I am currently working on. Together with the app, this is going to be a nice little service to send push notifications to your phone when something happens. Currently it's mainly focused on other developers, admins and techie people, but perhaps it sticks and get wider adoption.


Journal is a personal journal to keep track of the things you do and where you are. It's a open source Flask app you can host for yourself, for example on your own network on a Raspberry Pi. Or on somewhere completely different, that's your choice.


The Cacheplanner is a rough tool to help you plan your geocaching adventures. Or just a fast way to place markers on a map and getting the coordinates of that point. Whatever floats your boat.

I build this in the second half of 2010 and nowadays it's mainly just there to be looked at. I currently don't have the time to maintain it.

HTML5 Hexclock

A fun little Javascript/HTML5 based clock which changes the background color according to the current hexadecimal convertion of the time.