AURALBOOK for Trinity Grade1-8 v1.33
APK · 40.6 MB · version code 42 · Android 7.0+ · uploaded Jul 30, 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 v1.34, uploaded Sep 6, 2026 — about 1 month after this one.
- Size: this file is 40.6 MB; the latest is 40.6 MB.
- Both versions request the same permissions.
File information
- Version
- v1.33 (42)
- Uploaded
- Jul 30, 2026
- Size
- 40.6 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- de084edc2f6c53eb44466e1967ae36fe
- Signing certificate (SHA-1)
- 0D:96:EB:5E:C3:A6:09:76:1A:0D:9C:E0:6E:B6:C3:64:90:AF:DB:8D
- Signed by
- CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- File name
- com-playnote-trinity-aural-42-75871719-de084edc2f6c53eb44466e1967ae36fe.apk
- Package
- com.playnote.trinity.aural
- Downloads (all versions)
- 1K+
- Age rating
- PEGI 3 · Everyone
What's new in v1.33
Minor update
Game data (OBB)
This app needs extra data files (121.2 MB) next to the APK. Their download links appear once the download is unlocked.
- Main OBB
- main.28.com.playnote.trinity.aural.obb (121.2 MB)
- Main OBB MD5
- 95ef6a2a31b869eea0577c4d71e0bb28
Permissions (9)
This version requests 9 permissions, 3 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.playnote.trinity.aural.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Storage android.permission.STORAGE
- 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 Jul 30, 2026.
- Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature verified Jul 30, 2026
- Validated against Google Play Jul 30, 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 AURALBOOK for Trinity Grade1-8 on Android 7.0+
You'll need about 202.4 MB of free space (the APK plus 121.2 MB of game data).
- Download the APK — tap Download APK above (40.6 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 com-playnote-trinity-aural-42-75871719-de084edc2f6c53eb44466e1967ae36fe.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 de084edc2f6c53eb44466e1967ae36fe. 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 (121.2 MB), without renaming or unzipping, into Android/obb/com.playnote.trinity.aural/. 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 AURALBOOK for Trinity Grade1-8 — 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 7.0+). 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.