ClassBook v1.0.0 (build 24)

ClassBook v1.0.0 (build 24) — final polish + security hardening.

Fixed

• Search now works — typing in Discover filters your class books instantly, with a clear "no results" state.
• Smoother reading — page turns no longer cause background disk churn on large libraries.
• Faster "Add to library" and snappier Discover.
• Security hardening on the backend (already live) and accessibility/contrast improvements.

Install

1. Download ClassBook-v1.0.0-24.apk below.
2. Open it on your Android phone.
3. If prompted, allow "Install from unknown sources", then tap Install.

Android only. Requires Android 6.0+.

ClassBook v1.0.0 (build 23)

ClassBook v1.0.0 (build 23) — class sharing fix.

Fixed

• Shared books now appear for your classmates instantly. A file you send to your class shows up live on everyone's Discover feed — no more "nothing shared yet" when a book really was shared.

Also in this line (build 22)

• Reading works fully offline; faster & lighter; PDFs open in-app; friendlier "trouble on our end" errors; pull-to-refresh on the class feed.

Install

1. Download ClassBook-v1.0.0-23.apk below.
2. Open it on your Android phone.
3. If prompted, allow "Install from unknown sources", then tap Install.

Android only. Requires Android 6.0+.

ClassBook v1.0.0 (build 22)

ClassBook v1.0.0 (build 22) — offline-first & reliability update.

What's new

• Reading works fully offline — where you stopped reading is saved on your device and never needs the internet.
• Faster & lighter — the app makes far fewer server calls; screens you've already seen load instantly.
• File opening fixed — PDFs open right inside the app again.
• More reliable class sharing — a book you send to your class now lands reliably, even on a slow connection; pull down to refresh the class feed.
• Friendlier errors — if the server is busy, you'll see a clear "trouble on our end, please try again" instead of a raw error.

Install

1. Download ClassBook-v1.0.0-22.apk below.
2. Open it on your Android phone.
3. If prompted, allow "Install from unknown sources", then tap Install.

Android only. Requires Android 6.0+.

ClassBook v1.0.0

First public release of ClassBook — your course PDFs, organized. Read, highlight, quiz yourself, and stay in sync with your class.

Download

• Most phones (64-bit): ClassBook-arm64-v8a.apk
• Older 32-bit phones: ClassBook-armeabi-v7a.apk

Not sure? Pick arm64-v8a.

Install

Download the APK, allow install from your browser/Files app when prompted, then open it.

Highlights

• Import PDFs (and open other file types with your phone's apps)
• Clean in-app PDF reader with highlights, bookmarks, offline reading
• Classroom: join with a code, share books, class reps can moderate
• Activity streaks and stats — fully on-device
• Sync your library to a laptop over Wi-Fi