OpenBoard is a discontinued free and open source keyboard based on AOSP for Android devices.
It does not contain shortcuts to any Google apps and does not connect to Google servers. OpenBoard is licensed under GNU General Public License v3.0.
There is a fork of OpenBoard that gained popularity, called HeliBoard.
Features
OpenBoard is a privacy focused keyboard. It supports spell checking, text corrections and suggestions. It supports "force incognito mode" to disable the learning of new words, and Clipboard history, delete-key swipe actions.
References
