
Katana Librarian
A patch editor and librarian for your BOSS Katana amplifier.
Apps For Amps · com.appsforamps.katana
- Signature matches the Google Play version Details
At a glance
- Latest version
- v16.3.4 (207)
- Updated
- Jul 30, 2026 (2 months ago)
- APK size
- 3.1 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Category
- Music & Audio (app)
- Listed since
- Apr 17, 2021 (at least)
- Permissions
- 7 (3 sensitive)
- Developer contact
- [email protected]
About this APK
Katana Librarian is an app by Apps For Amps in the Music & Audio category, listed since at least April 2021. It has no native code, so it runs on any Android processor.
Since version 14.0.6, the minimum Android version rose from 4.0 to 5.0. It asks for 7 permissions, 3 of them sensitive: read shared storage, Bluetooth connect and Bluetooth scan. It asks for the same permissions as version 16.3.3. The app offers in-app purchases through Google Play.
What's new in v16.3.4
Description
From the listing uploaded by “appupdater”.
Version history
6 versions are listed, going back to v14.0.6. Since v16.2.2 it requires Android 5.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 30, 2026.
- Certificate issued to “AppsForAmps” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified Jul 30, 2026
- Validated against Google Play Jul 30, 2026
- Signed byCN=Sean Wilson, OU=Android, O=AppsForAmps, L=Kitchener, ST=ON, C=CA
- Signing certificate (SHA-1)1D:BC:25:00:76:D1:73:24:F5:A2:10:F0:D2:4E:91:85:5A:9C:E0:20
- File MD5ac36aaec4fc9da03ffca533d893cac19
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings 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 — compare the MD5 and signer after downloading.
Permissions (7)
Katana Librarian requests 7 permissions, 3 of them sensitive.
- Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
- Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.appsforamps.katana.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
Katana Librarian APK: questions and answers
Is there a version of Katana Librarian for older Android phones?
The current version needs Android 5.0 or later. Version 15.4 is the newest listed build that installs on Android 4.4 and later. Get version 15.4 · All versions
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is Katana Librarian free?
The APK is free to download, but the app offers in-app purchases through Google Play.
Is the Katana Librarian APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is ac36aaec4fc9da03ffca533d893cac19.