Self-hosted EPUB reader for calibre-web. No telemetry, no cloud, your data.
About this app
Quire is a native Android EPUB reader for people who self-host calibre-web.
It browses your library over OPDS, downloads books on demand, renders them with Readium, and syncs reading progress (and later bookmarks) to a small companion server you run yourself (Quire Server, included).
Features: - OPDS catalog browsing and search - EPUB reading with Readium (font, theme, line-height controls) - Reading progress sync across devices via your own Postgres - Multi-user from day one - One credential: your existing calibre-web account
Privacy: - No analytics, no crash reporting, no third-party SDKs - Network calls go to your calibre-web and your sync server only - Credentials stored in Android Keystore
Source code, server, and documentation: https://github.com/vitofico/quire
Optional AI features (off by default): when your Quire Server administrator configures an AI endpoint (such as a self-hosted Ollama or a third-party provider) and you opt in from Settings, Quire shows generated book insights — author, summary, series, themes, craft notes, comparative anchors, and book-club style discussion prompts — grounded with citations from Wikipedia and OpenLibrary. A separate Library Insights screen builds a personal reader profile from your finished books and suggests further reads (both from your own library and via OpenLibrary discovery). No AI request leaves your network until you explicitly opt in, and a single tap in Settings deletes the cached profile.
Licensed under Apache-2.0, by vitofico.
What's New in v2026.07.13.221
Imported from the F-Droid repository index.
Version history
Jul 15, 2026 · 23.6 MB · Android API 26–34 · code 26071321
Imported from the F-Droid repository index.
SHA-256 2ee975c86cfed6f3d02dfce6ad894510e45d0c48e9acd3a7bf144f4852ba66b2
Jun 9, 2026 · 23.6 MB · Android API 26–34 · code 26060612
Imported from the F-Droid repository index.
SHA-256 1b17a417fcc496c0a925503f703d0bbd1de514c39b8ff1ec6d3beee4ab695f86
Jun 3, 2026 · 23.6 MB · Android API 26–34 · code 26060209
Imported from the F-Droid repository index.
SHA-256 617eca0aff883756ef72aa0927995f261368e9a5faf999af8339076fc8d4208c
Will it run on your device?
87%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be io.theficos.quire is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2026.06.06.212 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Quire first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Quire, and a listing is removed when the evidence for it stops holding up.
Get Quire
Every source we list for io.theficos.quire is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
2ee975c86cfed6f3d02dfce6ad894510e45d0c48e9acd3a7bf144f4852ba66b2
Signing certificate
3c1814b1499c7c7996110835995d4112a39449f8da824333ea77aa7343948ff3
Permissions Required
What each permission lets Quire do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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