JW Library v9.3
APK · 99.4 MB · version code 15757 · Android 4.0+ · uploaded Sep 29, 2017
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v15.9.2, uploaded Oct 2, 2026 — about 9 years after this one.
- Size: this file is 99.4 MB; the latest is 78 MB (21.4 MB smaller).
- Android: this version needs Android 4.0+; the latest needs Android 8.0+. Use this one if your device runs an older Android release.
- The latest version asks for 4 more permissions: Run foreground services, Foreground service media playback, Read media audio, Internal broadcast protection (app-defined).
- The latest version no longer asks for: Read shared storage, Google Play license check.
File information
- Version
- v9.3 (15757)
- Uploaded
- Sep 29, 2017
- Size
- 99.4 MB
- Requires
- Android 4.0+ (API 14)
- CPU support
- x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS
- Screen
- Small screens and larger
- MD5
- a1c5159fa76cedc52d92d0cc2548608e
- Signing certificate (SHA-1)
- 4B:C9:3D:51:8F:C5:4C:D3:D7:3E:74:A4:EB:37:6A:4F:8F:0D:B3:A7
- Signed by
- CN=Christopher Nelson, OU=MEPS, O=Jehovah's Witnesses, L=Patterson, ST=NY, C=US
- File name
- org-jw-jwlibrary-mobile-15757-32400595-a1c5159fa76cedc52d92d0cc2548608e.apk
- Package
- org.jw.jwlibrary.mobile
- Downloads (all versions)
- 50M+
- Age rating
- PEGI 3 · Everyone
What's new in v9.3
Highlight text as you study
Game data (OBB)
This app needs extra data files (140 MB) next to the APK. Their download links appear once the download is unlocked.
- Main OBB
- main.146.org.jw.jwlibrary.mobile.obb (140 MB)
- Main OBB MD5
- 943a2bfdef40085afaddb776602e7a59
Permissions (7)
This version requests 7 permissions, 2 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Full network access android.permission.INTERNET
- Google Play license check com.android.vending.CHECK_LICENSE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jun 7, 2026.
- Certificate issued to “Jehovah's Witnesses” This is the certificate of the Google Play version.
- Same certificate as the 6 other versions checked
Store checks
- Developer signature verified Jun 7, 2026
- Validated against Google Play Jun 7, 2026
- Antivirus scan passed Nov 28, 2020
- Tested by the source store's staff Nov 12, 2017
- Uploaded by “morticiasstore” Silver tier · 7,780 followers · uploading since 2017
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install JW Library on Android 4.0+
You'll need about 338.8 MB of free space (the APK plus 140 MB of game data).
- Download the APK — tap Download APK above (99.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap org-jw-jwlibrary-mobile-15757-32400595-a1c5159fa76cedc52d92d0cc2548608e.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be a1c5159fa76cedc52d92d0cc2548608e. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Copy the game data — before the first launch, move the OBB file (140 MB), without renaming or unzipping, into Android/obb/org.jw.jwlibrary.mobile/. On Android 11 and later many file managers can't open that folder; use the built-in Files app or copy it from a computer over USB.
- Open JW Library — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.