---
title: "Katana Librarian - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Katana Librarian allows you to connect your phone or tablet to your BOSS Katana amplifier via a Bluetooth adapter (sold separately), unlocking your amp’s full potential!  The free version of the app a"
---

# Katana Librarian — United States

![Katana Librarian App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/98/50/5f/98505f50-eebd-08e8-f1c5-35bbf337a712/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [1000452063 ONTARIO](https://apptail.io/developer/1000452063-ontario-cIRb)
**Category:** Music
**Rating:** 4.1/5 (51 ratings)
**Price:** Free
**Bundle ID:** com.appsforamps.ios.KatanaLibrarian
**Store:** Apple App Store
**Country:** United States
**Version:** 5.7.2 (released 2026-09-22)
**Original Release:** 2022-04-22
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1616920240)
**AppTail Page:** [https://apptail.io/app/katana-librarian-nKJc/united-states](https://apptail.io/app/katana-librarian-nKJc/united-states)

## Katana Librarian Description
Katana Librarian allows you to connect your phone or tablet to your BOSS Katana amplifier via 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&#039;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 MIDI or HID foot switch for hands-free patch and effect switching.
- Access undocumented Katana features like hidden amps and multiple simultaneous effects (where supported).

What you need:

- An iPhone or iPad running iOS/iPadOS 15.0 or later
- A supported Bluetooth adapter*
- 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

* Currently supported Bluetooth adapters:

MkI and MkII amps:
- CME WIDI Uhost (
- XSONIC AIRSTEP (
- XSONIC AIRSTEP Kat Edition (
- XSONIC AIRSTEP Kat EX Edition (

Gen3 amps:
- BOSS BT-DUAL (
- XSONIC AIRSTEP Kat EX Edition (


See our Frequently Asked Questions here: 

Note: This app is not affiliated with or endorsed by Roland Corporation in any way. BOSS is a registered trademark of Roland Corporation. We may earn commissions for purchases made through links in this listing.

## Katana Librarian Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource122/v4/b4/b1/5d/b4b15de9-f8b5-2b0b-628f-01d87006b8a0/eed33568-d894-4d17-86cd-a313b5c46ad5_Simulator_Screen_Shot_-_iPhone_13_Pro_Max_-_2022-03-30_at_19.19.52.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource112/v4/dc/79/99/dc799969-7417-df54-efa7-1de6728d2f30/fde265eb-1470-4c61-9a1e-426205016278_Simulator_Screen_Shot_-_iPhone_13_Pro_Max_-_2022-03-30_at_19.20.37.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource122/v4/c1/08/5d/c1085df8-8872-97af-83b5-d36e23b549f7/8a01e0fa-8ce5-401a-9176-535ab91c0aa4_Simulator_Screen_Shot_-_iPhone_13_Pro_Max_-_2022-03-30_at_19.21.08.png/1284x2778.png)

## Katana Librarian Rating Breakdown in United States
- 5 stars: 33 (65%)
- 4 stars: 8 (16%)
- 3 stars: 2 (4%)
- 2 stars: 0 (0%)
- 1 stars: 8 (16%)

## Katana Librarian Reviews in United States

### ***** "Boss Katana Ktn210b support?"
Love the app.. any chance of bass katana combos?
-- Lnickknamesarebullcrap, 2025-09-05

### ****- "Great Idea, Poor Execution"
The concept behind Katana Librarian is excellent – a streamlined, intuitive way to manage Boss Katana patches without relying on Boss Tone Studio. Unfortunately, the execution leaves a lot to be desired.

I’m using a Boss Katana Gen 3 50W and an iPhone 15 Pro Max, so hardware is definitely not the issue. Yet the app is highly unstable, crashing almost every time I try to make any edit. This makes it incredibly frustrating and unreliable, especially when quick adjustments are needed.

Considering the app costs $14.99, you’d expect a far more polished and stable product. As it stands, it feels more like an unstable beta than a finished app. With some serious updates and bug fixes, this could be a fantastic tool for Katana users – but right now, it’s hard to recommend.
-- Kokuzare, 2025-07-13

### *---- "How do I get my money back"
I would like to get my money back, this app is not what I thought it would be . Boss tone studio is better
-- ftugfddjhb, 2025-03-24

### ****- "Great app with 1 issue"
Love the app - so much better than the BOSS app. However in the past few weeks I have not been able to change patch from within a group - I have to go back to the main list. Happens on the app on iPad and iPhone. Hoping this gets resolved soon and gets back to 5 stars!
-- Och Aye Jimmy, 2025-01-05

### ***** "Truly amazing app."
This app is awsome very smooth with a lot of cool features.
-- MTF1238, 2025-01-05

### *---- "No usb connection"
You have to buy a blu tooth adapter. The cheapest one they suggest is 60.00 and  doesn’t have the best rating so who knows if it’s going to work. I wish I had seen that is wouldn’t work with usb. I wouldn’t have bought this app had I known. The app would be worth the price if you didn’t have to spend 60.00 on top of the cost of the app .
-- warriorboxerdog, 2024-11-05

### ***** "I’m a blind guitar player. Without this, I would not have bought any boss Katana amp."
This year I recently start playing a lot of electric guitar. I use VoiceOver, a screen reader, for ios,  to navigate around for  the  the different effects.  I must say that this is super valuable for me. Without this amp, I would not have understand everything an electric guitar can do. Thank you very much for the developer of this app. This is one of those things that the developer have the heart to include everybody in the product, not only   to sell something. The only request I have for this app is for the developer to keep improving this app with the voice over compatibility along the way. Without this, I don’t know how I’m gonna be playing electric guitar that has multi effects feature in it.
-- Musicruz, 2024-10-01

### ***** "Gen 3 Support Please!"
We’re all waiting, I’ll buy as soon as it’s ready. Any day now, or?
Thanks!
-- Slammed2, 2024-09-02

### *---- "Not connecting"
The app will not connect to the amp with the CME Widi uhost . It just loads when I press connect.
-- Wesley_G_, 2024-05-31

### *---- "Can’t access iPad Pro with usb c adaptor"
Have to buy a $ 60 bluetooth adaptor to use.
-- Hfufichxodurkddjfn, 2024-03-15

[View all Katana Librarian reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&amp;utm_content=reviews)

## Katana Librarian In-App Purchases
| Item | Price |
|------|-------|
| Unlock All Features | $15.95 |


## Katana Librarian Discovered Keywords
- katana librarian

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- [Fender Tone](https://apptail.io/app/fender-tone-EpX/united-states)
- [AmpliTube TONEX](https://apptail.io/app/amplitube-tonex-lHTb/united-states)
- [BTS for KATANA-AIR](https://apptail.io/app/bts-for-katana-air-NTEc/united-states)
- [BTS for KATANA BASS](https://apptail.io/app/bts-for-katana-bass-YEXf/united-states)
- [BTS for ME-90](https://apptail.io/app/bts-for-me-90-FJVm/united-states)
- [BTS for KATANA:GO](https://apptail.io/app/bts-for-katanago-EBwp/united-states)
- [BTS for KATANA Gen 3](https://apptail.io/app/bts-for-katana-gen-3-wldq/united-states)
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## Katana Librarian Available In
- [United States](https://apptail.io/app/katana-librarian-nKJc/united-states)
- [United Kingdom](https://apptail.io/app/katana-librarian-nKJc/united-kingdom)
- [Canada](https://apptail.io/app/katana-librarian-nKJc/canada)
- [Germany](https://apptail.io/app/katana-librarian-nKJc/germany)
- [Australia](https://apptail.io/app/katana-librarian-nKJc/australia)
- [Philippines](https://apptail.io/app/katana-librarian-nKJc/philippines)
- [Italy](https://apptail.io/app/katana-librarian-nKJc/italy)
- [Thailand](https://apptail.io/app/katana-librarian-nKJc/thailand)
- [Mexico](https://apptail.io/app/katana-librarian-nKJc/mexico)
- [Spain](https://apptail.io/app/katana-librarian-nKJc/spain)
- [France](https://apptail.io/app/katana-librarian-nKJc/france)
- [China](https://apptail.io/app/katana-librarian-nKJc/china)
- [Brazil](https://apptail.io/app/katana-librarian-nKJc/brazil)
- [India](https://apptail.io/app/katana-librarian-nKJc/india)
- [Chile](https://apptail.io/app/katana-librarian-nKJc/chile)
- [Finland](https://apptail.io/app/katana-librarian-nKJc/finland)
- [Türkiye](https://apptail.io/app/katana-librarian-nKJc/turkey)
- [South Africa](https://apptail.io/app/katana-librarian-nKJc/south-africa)
- [Poland](https://apptail.io/app/katana-librarian-nKJc/poland)
- [Netherlands](https://apptail.io/app/katana-librarian-nKJc/netherlands)
- [New Zealand](https://apptail.io/app/katana-librarian-nKJc/new-zealand)
- [Sweden](https://apptail.io/app/katana-librarian-nKJc/sweden)
- [South Korea](https://apptail.io/app/katana-librarian-nKJc/south-korea)
- [Kuwait](https://apptail.io/app/katana-librarian-nKJc/kuwait)
- [Kazakhstan](https://apptail.io/app/katana-librarian-nKJc/kazakhstan)
- [Lebanon](https://apptail.io/app/katana-librarian-nKJc/lebanon)
- [Sri Lanka](https://apptail.io/app/katana-librarian-nKJc/sri-lanka)
- [Lithuania](https://apptail.io/app/katana-librarian-nKJc/lithuania)
- [United Arab Emirates](https://apptail.io/app/katana-librarian-nKJc/united-arab-emirates)
- [Malaysia](https://apptail.io/app/katana-librarian-nKJc/malaysia)
- [Nigeria](https://apptail.io/app/katana-librarian-nKJc/nigeria)
- [Norway](https://apptail.io/app/katana-librarian-nKJc/norway)
- [Peru](https://apptail.io/app/katana-librarian-nKJc/peru)
- [Pakistan](https://apptail.io/app/katana-librarian-nKJc/pakistan)
- [Portugal](https://apptail.io/app/katana-librarian-nKJc/portugal)
- [Romania](https://apptail.io/app/katana-librarian-nKJc/romania)
- [Saudi Arabia](https://apptail.io/app/katana-librarian-nKJc/saudi-arabia)
- [Singapore](https://apptail.io/app/katana-librarian-nKJc/singapore)
- [Slovenia](https://apptail.io/app/katana-librarian-nKJc/slovenia)
- [Taiwan](https://apptail.io/app/katana-librarian-nKJc/taiwan)
- [Ukraine](https://apptail.io/app/katana-librarian-nKJc/ukraine)
- [Uzbekistan](https://apptail.io/app/katana-librarian-nKJc/uzbekistan)
- [Vietnam](https://apptail.io/app/katana-librarian-nKJc/vietnam)
- [Latvia](https://apptail.io/app/katana-librarian-nKJc/latvia)
- [Argentina](https://apptail.io/app/katana-librarian-nKJc/argentina)
- [Austria](https://apptail.io/app/katana-librarian-nKJc/austria)
- [Azerbaijan](https://apptail.io/app/katana-librarian-nKJc/azerbaijan)
- [Belgium](https://apptail.io/app/katana-librarian-nKJc/belgium)
- [Switzerland](https://apptail.io/app/katana-librarian-nKJc/switzerland)
- [Colombia](https://apptail.io/app/katana-librarian-nKJc/colombia)
- [Cyprus](https://apptail.io/app/katana-librarian-nKJc/cyprus)
- [Czechia](https://apptail.io/app/katana-librarian-nKJc/czechia)
- [Denmark](https://apptail.io/app/katana-librarian-nKJc/denmark)
- [Dominican Republic](https://apptail.io/app/katana-librarian-nKJc/dominican-republic)
- [Algeria](https://apptail.io/app/katana-librarian-nKJc/algeria)
- [Ecuador](https://apptail.io/app/katana-librarian-nKJc/ecuador)
- [Egypt](https://apptail.io/app/katana-librarian-nKJc/egypt)
- [Greece](https://apptail.io/app/katana-librarian-nKJc/greece)
- [Hong Kong SAR China](https://apptail.io/app/katana-librarian-nKJc/hong-kong)
- [Croatia](https://apptail.io/app/katana-librarian-nKJc/croatia)
- [Hungary](https://apptail.io/app/katana-librarian-nKJc/hungary)
- [Indonesia](https://apptail.io/app/katana-librarian-nKJc/indonesia)
- [Ireland](https://apptail.io/app/katana-librarian-nKJc/ireland)
- [Israel](https://apptail.io/app/katana-librarian-nKJc/israel)
- [Japan](https://apptail.io/app/katana-librarian-nKJc/japan)
- [Iceland](https://apptail.io/app/katana-librarian-nKJc/iceland)

---

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