Onboarding

[kiliankoe]

User should be greeted by a dark transparent overlay when first starting the app (or first starting after an update) that summarizes the last changes and maybe gives hints on how to use the app.

http://stackoverflow.com/questions/9964371/how-to-detect-first-time-app-launch-on-an-iphone
https://github.com/lmirosevic/GBVersionTracking

[kiliankoe]

This could be an option: https://github.com/ephread/Instructions