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Instapaper vs Readeck App: catalog facts
Instapaper	Readeck App
Freemium Free to start; check the site for current paid options.	Free Free and open source under the GPLv3.
Android, iOS, Web, Browser extension	Android
Saves articles to read later instead of keeping tabs open Reading on iOS, Android, computer and eReaders	Native Android reading for a self-hosted Readeck library Actively maintained open source client
Hosted service, so your reading list lives on its servers Does not follow RSS feeds on its own	Requires a Readeck server and account Feature set is still growing beyond listing and reading bookmarks
Downloadable app, Web application, Hosted service, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-only
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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