Cumulus Installed fine on my nexus 7. Displayed map and GPS position but no airfield or airspace info. No amount of tweeking of the Settings made any difference. All of the appropriate files were present in cumulus folder. Pity, because I liked the overall simplicity of the application. The stars awarded are based only on my experience and are probably on the low side.
Excellent value for money! A very good app to manage most gliding prep and execution tasks.
-Bugfix: Airfield frequencies not always displayed
See here https://github.com/kflog-project/Cumulus/issues?q=milestone%3A5.29.3+is%3Aclosed for additional info
App is tested on Nexus 5 Android 6.01 and Galaxy S5. Please report errors/wishes etc. to <email@example.com>