This is the only forum where people actually been suspicious. . Anyways. I dont see the point of being suspicious about an android app.. whats the worst that could happen except for your phone getting keylogged or crashed. Theres no way an APK could entierly ruin a phone?
This is totally dodgy. Unless subtector posts the source for his app, it seems obvious he is looking to do more than just survey screens.
subtector, if you want people to trust you, why not address the concerns head on:
1) reveal more about your project by talking about *why* you want to collect the information that you say you want
2) reveal the source code for the application that you want people to install
Given that your reply to people security concerns was "i don't see the point of being concerned", I think this makes you seem all the more suspicious.
Good luck!