The good news is: I just released a new version of Tricky Tripper.
The bad news is: I have dropped support for devices prior Android 4.
Although I would really like to support older versions, I lack the time to do it properly. The trigger for this decision was a bug deep inside of the android support library, the one providing the backward compatibility, not likely to be fixed soon. The number of users with old phones (e.g. Android V 2.3) was/is constantly shrinking and I cannot recommend to use such old phones from the security point of view. However I feel deeply ashamed to live in such a material design smartphone throwaway society.