CRB Classical v6.3.15
APK · 26 MB · version code 535 · Android 5.0+ · uploaded Jan 1, 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 v12.0.3, uploaded Jul 24, 2026 — about 7 months after this one.
- Size: this file is 26 MB; the latest is 30.5 MB (4.5 MB larger).
- Android: this version needs Android 5.0+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
- The latest version asks for 1 more permission: Access adservices topics.
File information
- Version
- v6.3.15 (535)
- Uploaded
- Jan 1, 2026
- Size
- 26 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- 490d78c52d08b04f379d50e29347fa86
- Signing certificate (SHA-1)
- 98:64:85:E2:B6:24:FF:0D:7C:3B:ED:B9:35:D4:A9:03:2E:63:1B:8E
- Signed by
- CN=Jacobs Media
- File name
- com-jacapps-wcrb-535-72979144-490d78c52d08b04f379d50e29347fa86.apk
- Package
- com.jacapps.wcrb
- Downloads (all versions)
- 10K+
- Age rating
- PEGI 3 · Everyone
What's new in v6.3.15
Performance enhancements
Permissions (21)
This version requests 21 permissions, 2 of them sensitive.
- Call phone Sensitive android.permission.CALL_PHONE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices custom audience android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE
- Ad services config android.permission.AD_SERVICES_CONFIG
- Bluetooth android.permission.BLUETOOTH
- Control vibration android.permission.VIBRATE
- Foreground service media playback android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
- 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) com.jacapps.wcrb.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
- Show notifications android.permission.POST_NOTIFICATIONS
- Use full screen intent android.permission.USE_FULL_SCREEN_INTENT
- 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 Jan 1, 2026.
- Certificate issued to “Jacobs Media” This is the certificate of the Google Play version.
- Same certificate as the 4 other versions checked
Store checks
- Developer signature verified Jan 1, 2026
- Validated against Google Play Jan 1, 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 (4 other versions compared). AAPKs doesn't scan files itself.
How to install CRB Classical on Android 5.0+
You'll need about 52 MB of free space.
- Download the APK — tap Download APK above (26 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-jacapps-wcrb-535-72979144-490d78c52d08b04f379d50e29347fa86.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 490d78c52d08b04f379d50e29347fa86. 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 CRB Classical — 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 5.0+). 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 32-bit, ARM 64-bit 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.