The Mental Faculty is an independent software developer based in The Netherlands. We develop commercial and open source products for macOS and iOS.




Ensembles is an open source, peer-to-peer synchronization framework for developers of Core Data apps. It works with many different backends.


Everyone's a student, and Studies is the app for students. Get stuff into your head, whatever it may be, with the premium study card app for macOS and iOS.


Hiding Spots

Train your brain by finding shapes in a jumble of spots. This game is not only fun for all ages, it is also based on sound research in Cognitive Psychology which shows it can help increase your IQ.



Deliver flawless speeches with cue cards right on your iPhone or iPad. With Speeches, you can create your cue cards, rehearse, and deliver your speech perfectly timed, whatever the occasion.