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Keyman vs Sithakuru: catalog facts
Keyman	Sithakuru
Free Free and open source on all platforms.	Free Free and open source under GPL-3.0.
Windows, macOS, Linux, Android, iOS, Web	Android
Keyboards for over 2,500 languages Available on desktop, mobile and web	Wijesekara and Singlish layouts Adjustable height, font size and colours
Layouts must be found and installed separately for each language	Android only Limited English documentation
Downloadable app, Web application	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.