Katana Librarian

Name: Katana Librarian
Rating: 4.42 (903 reviews)
Author: Apps For Amps

By: Apps For Amps

A patch editor and librarian for your BOSS Katana amplifier.

▶

Features & Capabilities

Katana Librarian is a powerful patch editor and librarian designed specifically for your BOSS Katana amplifier. By connecting your Android phone or tablet through USB or a Bluetooth adapter, you can unlock the full potential of your amp. The app allows you to download, modify, rename, and organize patches with real-time parameter updates that reflect any changes made on the amplifier.

With a one-time in-app purchase, you gain access to advanced features such as importing and exporting .TSL files across various Katana models (MkI, MkII, Gen3, GO), creating set lists for live performances, emulating the GA-FC pedal's functionality, and integrating Bluetooth MIDI/HID foot switches for hands-free patch and effect switching. The extension also exposes hidden amp features like multiple simultaneous effects for compatible models. Compatible with many BOSS Katana amps and requiring Android 4.4 or later, Katana Librarian is an essential utility for musicians seeking granular control over their sound and streamlined patch management.

User Growth & Download Statistics

App Music & Audio Developer Tools

By:

Downloads:

Rating:

Version:

16.3 Last updated: 2026-06-02

Version code:

203

Creation date:

2018-12-21

Publisher country:

Permissions:

android.permission.READ_EXTERNAL_STORAGE High risk
android.permission.BLUETOOTH_CONNECT Moderate risk
android.permission.BLUETOOTH_SCAN Moderate risk
android.permission.INTERNET Low risk
com.android.vending.BILLING Low risk
android.permission.ACCESS_NETWORK_STATE Safe
com.appsforamps.katana.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Size:

3.07MB

Email:

ap*****@gmail.com

URLs:

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-14

Compare stats and ranking:

Ranking

# 205,200 ▲ 1,797

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Apps For Amps

Google Play Store

https://play.google.com/store/apps/details?id=com.appsforamps.katana

Email:

ap*****@gmail.com

User Reviews

Overall, Katana Librarian is valued as a powerful, value-for-money editor that makes loading patches and tweaking tones easier and faster, with strong USB/Bluetooth connectivity and a capable patch library. The top drawbacks are recurring connectivity issues on various devices, licensing/purchasing frictions, and Chromebook USB limitations. Most users view it as essential for Katana users and worth the investment, though they want ongoing bug fixes and improved cross-device reliability.

Pros

Significantly speeds patch loading and tweaking compared with Tone Studio.
Flexible USB or Bluetooth connectivity with Airstep Kat, making pairing easy.
Powerful patch creation, storage, and patch library that unlocks a wide range of tones.
Worth the price; many users consider it essential and highly capable.
Intuitive editor that is often viewed as more capable than alternatives (e.g., Boss PC/Android apps).

Cons

Connectivity issues across devices (Bluetooth/USB) causing frequent frustration.
Licensing and purchases are frustrating: in-app purchases not available, re-purchasing on reinstall, and cross-device restrictions.
Chromebook USB compatibility is lacking; Bluetooth is often the only option.

Recent reviews

fantastic! perfect!

Br*****, 2026-05-13

This app is misleading in that it uses the official Katana logo, and implies that it is necessary to "unlock" all features of the amplifiers. In spite of *immediately* (within minutes) requesting a refund, it was denied as being "against policy." While it may be useful for some, it is misleading and should be better marked as being a third-party app.

CJ*****, 2026-04-30

it's messy and hard to use. plus we can't even save one presers for different songs means I need one preset for 2 different songs and it can't happen every time I try to do it doesn't work 1250₹ wasted very disappointed