I need an app that calls the phone number of the gate GSM device. Must run on IOS and Android. Apps must be setup on google play and Apple store.
App needs two screens,
1. Big button "Open Gate"
2. Settings screen to set number to call
the ability to control several gates
and if possible it would be great to dial the gate number by simply shaking the phone or by using location services so the gate number is dialled on approach