1. When you connect an external Bluetooth keyboard to your Android device, the English layout is set by default. To get support for additional layouts and to choose between different layouts, install a special tool. For example, try using Extra Physical Keyboard Layouts.

2. The shortcut for switching the input language on iOS 9 and 10 is Ctrl+Space, on older iOS versions - Command+Space.

3. Modern Mac keyboards have built-in media keys which can be quite handy (play/pause, etc.). Typeeto can send these commands to iOS devices only when the Fn key is pressed. So in case the Use all F1, F2, etc. keys as standard function keys option in System Preferences is disabled (Apple menu → System Preferences → Keyboard), you will have to press the Fn key when you type in Typeeto.