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Episteme Reader vs Areada: catalog facts
Episteme Reader	Areada
Free Free and open source under the AGPL-3.0.	Free Free and open source under the Apache 2.0 licence.
Android, iOS	Android
Reads PDF, EPUB, MOBI and AZW3 in one app Also opens Markdown, HTML and plain text	Reads EPUB, PDF, TXT and FB2, including books inside archives Works offline from local folders
Desktop and iOS versions are not confirmed as released Contributions require signing a CLA	Android only Notes are basic plain text
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: Apache-2.0
Not stated if an account is needed	No account needed
Works offline	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.