This is not a standalone app. It is a plugin to provide Autotext / shorthand and Next word Prediction functionality for Multiling O Keyboard.
Please install Multiling<a href="https://play.google.com/store/apps/details?id=kl.ime.oh"> O Keyboard</a> along with this plugin.
Tips: You can use it as shortcut for quick notes, smileys, kaomoji, ascii art, emoticon, emoji...</br></br></br></br></br>