Athos is free for libraries of up to 49 books. Adding the 50th book requires Athos Unlimited, with a monthly subscription or a one-time lifetime purchase. Existing books remain readable without a purchase. Prices are shown in the app for your App Store region.
Purchase sharing depends on the product’s Family Sharing availability in the App Store. Each person keeps a separate library in their own iCloud account.
Use the Apple Account that made the purchase, then open Settings → Athos Unlimited → Restore Purchases. Athos does not require a separate account.
On your devices, with an iCloud copy if sync is on. Athos has no backend for your library.
Yes. Export to CSV or JSON from Settings → Data → Export.
No analytics or tracking. Feedback comes by email, not usage data. See the privacy policy.
Captured offline and queued; details fill in when you reconnect.
Yes — sync is opt-in. Run Athos as a single-device library and your data stays entirely on that device.
Sync timing depends on your connection, iCloud availability, and library size. Large first syncs and cover downloads can take longer. The sync status screen shows activity, pending changes, and issues.
Athos merges changes field by field. When a conflict needs a decision, review both values in sync conflict review and choose which to keep.
ISBN first, then fuzzy title and author matches. You review each match before import.
Twelve sources: Goodreads, StoryGraph, LibraryThing, Calibre, Libib, Delicious Library, Book Tracker, Book Buddy, Open Library, ISBN lists, CSV, and JSON.
Athos includes translations across supported languages. Dates, numbers, and currencies follow your device’s regional settings. Version 1.2 updates these translations.
None. Athos catalogues owned books in any format. Apple Books is one metadata source for cover art.
Yes. Use hardcover, paperback, ebook, audiobook, or custom formats.
No. Athos is built for Apple platforms.
Athos 1.2 adds Curated Categories, Publisher Tidy-Up, a redesigned Metadata Review, faster batch adds, clearer iCloud status, and Apple Watch reading timer controls. Read the detailed release notes.
iOS 27, iPadOS 27, macOS 27, and watchOS 27 or later. Apple Intelligence features also require a supported device and language, with Apple Intelligence enabled.
Send support questions, feedback, or launch notes by email. Include any useful context and I'll reply when I can.