The application will ask for the following permission:
Read and write contacts, because the main functionality of the application is to copy contacts from one phone to another
Location information (optional): this application will ask for wifi AP name to judge if two phones are in the same network or not, which require location permission.
Internet access, because the application needs to request Google Admob ads to fund the development of the free application, and also we need to use internet to connect two phones.
Camera access (optional): it may use camera to scan qrcode, which enables a phone to copy contacts from the other.
Under no circumstance the application will transfer any of your contacts to anywhere outside of your phones. Your privacy is our first priority.