This has the potential to be a fantastic app, but it has a lot of work required yet. Just off the top of my head, you need the following improvements:
1. The interface needs to be much better designed. I'm sorry, but it looks ugly right now.
2. When the call is answered by any method, switch to the call-in-progress screen. If I use SpeakerPhone Ex to answer calls simply by bringing the phone up to my ear, the screen remains on because of your app, and it doesn't switch to the call screen. Same while answer calls with headsets.
3. Don't show up when not required. If the screen is turned off or locked, or if you are in the Phone app, incoming calls should just be handled regularly. Also give users the option to exempt certain apps (like exDialer, for me).
This is a great idea and I would love to use it, but at least until #2 is fixed, I cannot. Thanks for making it.
Sent from my Nexus 4 using xda app-developers app