As of 2026, it remains a top choice for readers due to its custom rendering engine and "FBReader Book Network," which allows users to sync their library via Google Drive. Where to Download FB2 Readers
: A highly-rated alternative that is free, ad-free, and requires no registration.
: Often cited by long-time users for its simple interface and excellent performance on low-end devices. Why the FB2 Format? FBReader for Android
: Supports ePub, PDF, and Kindle formats alongside FB2. A Premium version is available that includes built-in PDF support and text-to-speech features.
Launched in 2009, FBReader was one of the first apps on the Android Market. It gained massive popularity—now with over 30 million installs—by supporting the FictionBook (.fb2) format, which was the standard for digital books in Russia and Eastern Europe during the 2000s.
Originally an open-source project under the GPL license, FBReader shifted to a proprietary license in 2015.
: Known for extreme customizability and support for various archive formats.