Compare software

Vanilla vs OpenCalc: catalog facts
Vanilla	OpenCalc
Free Free and open source under the GPL-3.0 license.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Lightweight app No permissions needed, according to its project description	Small download with no unnecessary permissions Scientific mode and calculation history
Android only	Android only No releases published on the GitHub repository
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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