Only God knows why Android doesn't have Thai keyboard layout installed. Nevertheless this app adds Thai (Kedmanee) layout to your Android devices. Now you can type Thai from any physical keyboards: Bluetooth or USB keyboard.

No visible app to cluster your devices. Only what your device needs keyboard layout which you can select in Physical Keyboard section.

There is only Kedmanee layout at the moment since most people (99%?) use it. If you need another one please let us know in comment section.