Sound Boost v3.1.1
APK · 4.9 MB · version code 7 · Android 5.0+ · uploaded Dec 27, 2025
- 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 v3.2.0, uploaded Nov 16, 2025.
- Size: this file is 4.9 MB; the latest is 5.1 MB (173.4 KB larger).
- The latest version asks for 2 more permissions: Show notifications, Internal broadcast protection (app-defined).
File information
- Version
- v3.1.1 (7)
- Uploaded
- Dec 27, 2025
- Size
- 4.9 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- b9fe1754f332ef8b002c61da62cca8be
- Signing certificate (SHA-1)
- D6:1B:BC:CE:59:CD:D4:18:88:05:FF:FC:02:45:5A:1E:90:A9:05:78
- Signed by
- CN=Leo Cacheux, OU=Leo Cacheux, O=Leo Cacheux, L=Paris, ST=France, C=FR
- File name
- net-cacheux-soundboost-7-72944933-b9fe1754f332ef8b002c61da62cca8be.apk
- Package
- net.cacheux.soundboost
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
What's new in v3.1.1
Add support for most recent Android versions. Now the phone state permission is asked on launch instead of granted automatically.
Permissions (8)
This version requests 8 permissions, 1 of them sensitive.
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- 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 Dec 27, 2025.
- Certificate issued to “Leo Cacheux” This is the certificate of the Google Play version.
- Same certificate as the other version checked
Store checks
- Developer signature verified Dec 27, 2025
- Validated against Google Play Dec 27, 2025
- 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 (1 other version compared). AAPKs doesn't scan files itself.
How to install Sound Boost on Android 5.0+
You'll need about 9.8 MB of free space.
- Download the APK — tap Download APK above (4.9 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 net-cacheux-soundboost-7-72944933-b9fe1754f332ef8b002c61da62cca8be.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 b9fe1754f332ef8b002c61da62cca8be. 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 Sound Boost — 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.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.