1. My BT
Available on: iOS, Android
If BT happens to supply your broadband, mobile or TV services, we can't think of a good reason not to download the operator's latest app.
My BT for iOS and Android lets users manage their account from their mobile device, checking recent bills, reviewing the services they are signed up for, and more.
It comes in really handy when your WiFi is on the blink, since it allows users to reboot their router remotely and book an engineer in-app if that doesn't solve the problem.