Manage your library for free, forever. Upgrade to unlock AI features, cloud backups, wireless Send to Kindle and much more.
| Feature | Free | Premium |
|---|---|---|
| Library size | Unlimited | Unlimited |
| Built-in reader (EPUB, PDF, comic) | ✓ | ✓ |
| eBook import & format conversion (EPUB, AZW3, MOBI, PDF, CBZ/CBR) | ✓ | ✓ |
| Send to any eReader (USB) | ✓ | ✓ |
| Auto metadata & cover fetch | ✓ | ✓ |
| Full-text search | ✓ | ✓ |
| Tags, status & filters | ✓ | ✓ |
| Reading stats, goals & heatmap | ✓ | ✓ |
| Windows · macOS · Linux | ✓ | ✓ |
| Liber AI — summaries | — | ✓ |
| Liber AI — smart tags | — | ✓ |
| Liber AI — book chat | — | ✓ |
| Cloud backup | — | 10 GB |
| Bulk format conversion | — | ✓ |
| Wireless Send to Kindle (OTA) | — | ✓ |
| Auto-sync with Kindle (USB) | — | ✓ |
| Direct influence on roadmap | — | ✓ |
Yes. No time limit, no book limit. Library management, the built-in reader, format conversion, and all core features are free for life.
Yes — drag your ebook files, or your entire Calibre library folder, into Liber. Books are imported 100% locally; metadata and covers are detected automatically, and duplicates are skipped. Your original Calibre library is never modified.
All major credit and debit cards, PayPal, Apple Pay, and Google Pay via Paddle, our payment processor and Merchant of Record.
Yes. The prices shown are the final amounts you pay, including all applicable taxes.
Yes. Cancel from within the app via Settings → Premium, or via the link in your receipt email at any time. You keep Premium access until the end of your billing period.
We offer a fully functional 7-day free trial, allowing you to evaluate Premium before purchasing. Because you can try all features before being charged, purchases are generally non-refundable, except where required by applicable law (e.g., for EU consumers). For details, see our Refund Policy or email support@tryliber.com.
Each license can be used on one active device at a time. You can deactivate a device and transfer your license to another device at any time from Settings.