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Harp vs OpenAvisio: catalog facts
Harp	OpenAvisio
Free Free on F-Droid; the Play Store version is paid as a way to support development.	Free Open source under the AGPL-3.0; the research mentions no paid tier.
Android	Android, Self-hosted
Data kept as plain Org Mode files you own No accounts, servers or analytics	AI extraction of diagnoses, medications and lab values Answers cite the source document
No built-in sync; bring your own tool Org Mode format is unfamiliar to many users	Requires running your own instance Website and materials are in German
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: GPL-3.0-or-later	License: AGPL-3.0
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 2, 2026	Official website Full listing and sources Checked October 2, 2026

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