PRE StudBook app v3.8.0
APK · 18.8 MB · version code 105 · Android 8.0+ · uploaded Jun 16, 2026
- 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 v3.9.0, uploaded Jul 10, 2026 — about 24 days after this one.
- Size: this file is 18.8 MB; the latest is 20.3 MB (1.5 MB larger).
- Both versions request the same permissions.
File information
- Version
- v3.8.0 (105)
- Uploaded
- Jun 16, 2026
- Size
- 18.8 MB
- Requires
- Android 8.0+ (API 26)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- f0dfb7b41cfe5d413041b0a2baed5f8f
- Signing certificate (SHA-1)
- AB:31:A1:7A:53:3D:66:34:DE:C3:8E:AD:60:BE:C4:5D:18:BE:0D:ED
- Signed by
- CN=jajapon
- File name
- app-lgpreancce-105-75218581-f0dfb7b41cfe5d413041b0a2baed5f8f.apk
- Package
- app.lgpreancce
- Downloads (all versions)
- 10K+
- Age rating
- PEGI 3 · Everyone
What's new in v3.8.0
Biometric login: you can now sign in faster and more securely using your fingerprint or facial recognition.
Permissions (12)
This version requests 12 permissions, 1 of them sensitive.
- Camera Sensitive android.permission.CAMERA
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Internal broadcast protection (app-defined) app.lgpreancce.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- 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 16, 2026.
- Certificate issued to “jajapon” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature verified Jun 16, 2026
- Validated against Google Play Jun 16, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install PRE StudBook app on Android 8.0+
You'll need about 37.6 MB of free space.
- Download the APK — tap Download APK above (18.8 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 app-lgpreancce-105-75218581-f0dfb7b41cfe5d413041b0a2baed5f8f.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 f0dfb7b41cfe5d413041b0a2baed5f8f. 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).
- Open PRE StudBook app — 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 8.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.