Currently I'm working at PSPDFKit, and I've also made some things!
Always On Proximity
Something written when I should've been studying, AOP allows you to control your phone's proximity sensor.
Take photos quickly right from the home screen by double-tapping the camera icon
QuickShoot Pro -- Source
Adds video recording to QuickShoot, along with a boatload of options and some nice animations.
Apex -- Source
Application grouping re-imagined – released under A3Tweaks.
A fun new way to browse GIFs, with a fantastic keyboard