ReadFlow – Ebook & PDF Reader – Privacy-focused ebook reader with app lock and WebDAV sync

Summary: ReadFlow is a cross-platform ebook reader emphasizing privacy and data ownership. It offers app lock with PIN or biometrics, WebDAV sync for books and notes on personal servers, multi-format support, and reading analytics. Users can export notes and highlights in multiple formats and optionally integrate AI tools for summaries and translations.

What it does

ReadFlow secures access with app lock and syncs ebooks, progress, and annotations across devices via WebDAV on user-controlled servers. It supports EPUB, PDF, MOBI, AZW3, FB2, and TXT formats, provides multi-color highlights, exports notes to TXT, Markdown, or CSV, and displays reading heatmaps, streaks, and reports.

Who it's for

It is designed for readers who want to manage ebooks and notes privately across devices without vendor lock-in, especially on shared devices.

Why it matters

ReadFlow solves privacy and data ownership issues by enabling secure app access and syncing content on personal servers, avoiding cloud lock-in and ad-based models.