The Todo Script (also known as Clear Script) is related to the traditional Mongolian vertical script and is used by the Oirats in Xinjiang China and the Kalmyks in Russia.

Keyboard features:

- Todo and Mongol keyboard layouts (long press the keyboard key to switch)
- Word suggestions based on your typing (data is stored on your device not a remote server)

App features

- Vertical text input window for proper orientation
- Since most other apps do not support vertical script you can share the text you type as an image.