Download BIG! Full Screen Caller ID Pro v3.2.9 APK - This may be the unlocker because of its full version involving BIG! Full Screen Caller ID. right after installing it, You will simply no longer be limited to help five active contacts, AND ads may disappear.
You need for getting the free version installed sooner purchasing:
https://play.google.com/store/apps/details?id=com.wroclawstudio.screencaller
