I need and Androi app, and Apple store app.
It will will use Bluetooth 4 ? to search other phones (android ios) with the same app , and alert user displaying BIG message on the screen if another app user is 5 meters away or closer. I need it to be configurablbe.
Interface will be black and white very simpe
exchanging secure information between multiple phones that come in direct proximity, and pushing notification to a user
NDA , preferably freelancers from Poland, Romania Bucarest, , but not necessary.