Episteme Reader
Episteme Reader is a free, open-source reading app for Android and iOS. A document reader for PDF and E-Books. It has 1,322 GitHub stars and is released under the AGPL-3.0-only license, and you can install it from F-Droid, Google Play and the App Store.
github.com/Aryan-Raj3112/episteme (opens in a new tab)
Data as of from the GitHub API and the F-Droid index; description from the project's repository or F-Droid listing. Report an error
About Episteme Reader
Episteme Reader is an offline-first, privacy-focused document and e-book reader that supports PDF, EPUB, MOBI, AZW3, Markdown, HTML, and plain text.
Privacy and F-Droid
F-Droid builds Episteme Reader from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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Is Episteme Reader free and open source?
Yes. Episteme Reader's source code is public on GitHub under the AGPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install Episteme Reader?
You can install Episteme Reader from F-Droid (package com.aryan.reader.oss), from Google Play and from the App Store; the links are on this page. Its GitHub repository also publishes releases (latest: v1.0.58-oss).
Is Episteme Reader still maintained?
The repository's most recent commit was on Oct 10, 2026. Its F-Droid listing was last updated on Oct 14, 2026. appsgit only lists apps whose repository had a commit in the last six months.