iOS bluetooth LE gate opener

Job ID: 35605843

Budget: $30 – $250 USD

I need an iOS app to scan for BLE server and write data to it. The server then triggers a relay to open a gate. Only the app needs to be built, since the BLE server is already operating with an Android app.
When the user opens app, it starts to scan for nearby BLE signals and when desired signal is detected, it connects to it and enables a button for user to tap. When user taps button, it writes the devices's ID to the server.