HeliBoard

HeliBoard is a privacy-conscious open-source keyboard, based on AOSP / OpenBoard.

Does not use internet permission, and thus is 100% offline.

Features:

Add dictionaries for suggestions and spell check

build your own, or get them here , or in the experimental section (quality may vary)

additional dictionaries for emojis or scientific symbols can be used to provide suggestions (similar to "emoji search")

note that for Korean layouts, suggestions only work using this dictionary , the tools in the dictionary repository are not able to create working dictionaries

Customize keyboard themes (style, colors and background image)

can follow the system's day/night setting on Android 10+ (and on some versions of Android 9)

can follow dynamic colors for Android 12+

Customize keyboard layouts (only available when disabling use system languages )

Customize special layouts, like symbols, number, or functional key layout

Multilingual typing

Glide typing ( only with closed source library ☹️)

library not included in the app, as there is no compatible open source library available

can be extracted from GApps packages (" swypelibs "), or downloaded here (click on the file and then "raw" or the tiny download button)

Clipboard history

One-handed mode

Split keyboard (only available if the screen is large enough)

Number pad