Katana Librarian app icon

Katana Librarian

A patch editor and librarian for your BOSS Katana amplifier.

Apps For Amps · com.appsforamps.katana

Not rated yet 100K+ downloads v16.3.4 3.1 MB Android 5.0+ PEGI 3 · Everyone

  • 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

Added patch sorting to the Library

Description

From the listing uploaded by “appupdater”.

Katana Librarian allows you to connect your phone or tablet to your BOSS Katana amplifier via USB or a Bluetooth adapter (sold separately), unlocking your amp’s full potential! The free version of the app allows you to test your connection and load the built-in demo patches. A one-time in-app purchase is offered if you wish to unlock the full feature set, which will allow you to: - Download patches from your amplifier. - Modify the patch parameters; includes support for all effect types; the editor also changes in real-time as you adjust the parameters on your amp. - Organize your patches into groups. Tag your favorite patches, or create a set list for a live performance. - Import and export MkI, MkII, Gen3 and GO .TSL files. - Rename and delete patches. - Write patches to the amplifier's channels. - Emulate the functionality of a GA-FC pedal (even on a KATANA-50 or KATANA:GO). - Use the hotkey feature in combination with a Bluetooth MIDI or HID foot switch (e.g. https://amzn.to/3RqNcDY) for hands-free patch and effect switching. - Access undocumented Katana features like hidden amps and multiple simultaneous effects (where available). What you need: 1) A phone or tablet running Android 4.4 or later 2) One of the following amplifiers: • KATANA-50 • KATANA-50 MkII • KATANA-50 Gen3 • KATANA-50 MkII EX • KATANA-50 EX Gen3 • KATANA-100 • KATANA-100 MkII • KATANA-100 Gen3 • KATANA-100/212 • KATANA-100/212 MkII • KATANA-100/212 Gen3 • KATANA-HEAD • KATANA-HEAD MkII • KATANA-HEAD Gen3 • KATANA-Artist • KATANA-Artist MkII • KATANA-Artist Gen3 • KATANA-Artist MkII HEAD • KATANA-Artist HEAD Gen3 • KATANA:GO 3a) To connect using USB: For MkI and MkII amps: A USB A-to-B cable (also known as a USB printer cable) and a USB OTG adapter. If your phone has a USB Micro-AB connector, you will need an adapter like this one: https://amzn.to/3eLLGve. If your phone has a USB Type-C connector, you will need an adapter like this one: https://amzn.to/3BwCJ1J. For Gen3 amps and the KATANA:GO: A USB Type-C cable like this one: https://amzn.to/4duwyLu 3b) For connecting over Bluetooth, a supported Bluetooth adapter: For MkI and MkII amps: - CME WIDI Uhost: https://amzn.to/3RKnXdy - XSONIC AIRSTEP: https://amzn.to/3QCzJoO - XSONIC AIRSTEP Kat Edition: https://amzn.to/3RZaUV2 For Gen3 amps: - BOSS BT-DUAL: https://amzn.to/3AxrHLB - XSONIC AIRSTEP Kat EX Edition: https://amzn.to/3T1Rly2 See our Frequently Asked Questions here: https://drive.google.com/file/d/19G4j_bk8c8OZ3vBvZKWHnuXg9ZEpKbkx/view Terms of Use: https://drive.google.com/file/d/17LZm2KGZxHNMhiSOJneTkCebbYs9dF9X/view?usp=share_link Privacy Policy: https://drive.google.com/file/d/1XffOKpQb0QuopIt0SDv8M5EyOAoNfdzi/view?usp=share_link Note: This app is not affiliated with or endorsed by Roland Corporation in any way. BOSS is a registered trademark of Roland Corporation. Commissions may be paid for purchases made through links in this listing.

Version history

6 versions are listed, going back to v14.0.6. Since v16.2.2 it requires Android 5.0+.

All 6 versions

Security & authenticity

Security rating: Trusted

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 5 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 (5 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.

Required hardware & features

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 5 other versions checked. After downloading, check that the file's MD5 is ac36aaec4fc9da03ffca533d893cac19.

Tags

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