FAQ
Before your first import
If the answer is missing, write to contact@library-manager.com.
Installation
Do I need to install Calibre?
No, the library runs in your browser. For a USB e-reader or an SD card, open its folder in a compatible browser and grant the permissions it asks for.
Do I need to keep the browser open?
For USB/SD and Crosspoint on your local network, yes: the tab has to stay open with the right permissions. Processing the server has already accepted keeps going even if you leave the page.
Is there an iPhone or iPad version?
Not yet. The app is only distributed for Android, as an APK file. On iPhone, the library-manager.com web reader still works in the browser.
How do I update it?
Download the new APK from this page and install it over the old one: your books and settings are kept.
E-readers
How do I reach my e-reader?
Plug in the USB e-reader or SD card, then open its folder in a compatible browser over a secure connection. Its contents appear, and you can copy your selection in either direction.
Does it work with a Kindle?
Yes, through the folder of the e-reader plugged in over USB: the send profile of a Kindle folder prepares AZW3. No sending through Amazon e-mail.
Do all methods sync the same information?
No. Transfers copy files, OPDS offers a catalog to download from, and KOReader/kosync only syncs personal progress. Whether you can see or remove files on the device depends on the method and its firmware.
Is KOReader supported?
Yes, in three ways: wireless Calibre to receive books, OPDS catalog to download them, kosync server to send progress back. The credentials come from the app, not from an account created on the e-reader.
AI
Can I start without an AI key?
Yes. Importing, reading and organizing your books doesn’t need a key. Add one whenever you want the assistant to fill in their details.
Is AI included in the subscription?
No. You use your own key, and your provider charges for AI calls at its own rates, on top of your library subscription.
What does the AI provider receive?
The metadata, the file name and an excerpt of at most 16 KiB, chosen to identify the book. Never the whole file.
Plans
How are books counted across my workspaces?
Every plan includes unlimited workspaces. Your account quota adds up the active books you own across all of them, plus slots reserved by imports. Versions of the same book don’t take an extra slot. Books lent to you don’t count; books you lend out still count on your side.
What happens if I cancel?
You keep the plan until the end of the paid month, then the account goes back to Free. Your books stay; you can’t add more while you’re above 100.
Do I need a card for the free plan?
No. The free plan creates no Stripe subscription.
Does the app cost anything?
No, it is free and open source. The library-manager.com account has its own plans, including a free plan for 100 books.
Sharing
Does a reader see my notes or my progress?
No. Progress, bookmarks, notes, favorites, AI keys and conversations are personal, even to the space owner.
What happens if I leave a space?
You’ll need a new invitation to come back. Your progress, annotations and devices in that space stay recorded for 30 days, invisible to others, then are erased.
Data
What happens to the original file?
Its text stays intact. When you correct the title, the author or the series, that metadata is written into the file so that your e-reader shows it, and the file as imported remains downloadable for 30 days. An optimization creates a separate version with its own history.
What format is the export?
One JSON per space for your data, one ZIP per owned space for your books as stored, with a fingerprint index. Beyond 50 GiB, the file export of a space fails with an explanation.
Why 14 days before deletion?
So you can cancel or export in case of a second thought or a mistake. During that period, nothing else can be changed.
App
Do I need a Library Manager account?
No. The app reads the books on your phone without an account. Signing in adds your online books, uploads and reading sync.
Where is the source code?
On GitHub, under the GPL-3.0 license. Each release also publishes the exact sources of the compiled APK.
Is there a mobile app?
Yes, on Android: Library Manager Reader, an open-source app that reads your EPUB, MOBI, AZW3 and CBZ/CBR files offline and syncs your reading position with your library. You install it directly from its APK file; it isn’t on Google Play for now, and no iOS version is distributed yet. You’ll find all the details on the Mobile app page.