Frequently asked questions

No. StoryCairn’s premium unlock — Calibre/OPDS library access — is a one-time purchase. Buy once, keep it. There are no recurring charges and no subscription tier.

Calibre is a popular open-source ebook library manager. OPDS (Open Publication Distribution System) is a standard protocol for browsing and downloading from ebook catalogs.

If you run either on your own server or desktop, StoryCairn can connect to it and read from your personal library on mobile — no vendor lock-in, no cloud middleman.

Yes — offline reading is the core promise. Any book you’ve downloaded stays on your device and remains available without a network connection. Sync, when enabled, runs in the background whenever you’re online again.

No. Sync covers reading progress, highlights, notes, bookmarks, and settings — the lightweight data that keeps your reading experience consistent across devices. The EPUB files themselves stay on each device you put them on. If you want the same book on two devices, import or download it on each.

iOS and Android. There is no desktop app planned for the initial release — the focus is on phones and tablets as the reading surfaces most people actually carry with them.