Nabla TypeMath appNabla TypeMath is Writing tool that is open source under the GPL-3.0-only license.
Nabla TypeMath is an android application that allow you to easily type mathematical symbols. It convert commands into unicode mathematical symbol. Most of its commands is based on LaTeX commands with some additional changes for ease of use.
For example, you can type
.x bar = y^2 + alpha., and it will converted into
x̅ = y² + α. More information about the commands is available in the app.
This app works as a background service, and the service can be use in many apps such as messaging, chatting apps, web browser, etc. It also has custom command feature that can be used as a snippets to help user type faster. For example, snippets for name, email, address, etc.