# THR Remote vs Katana Librarian

The clearest difference is review sentiment: Katana Librarian at 63% against THR Remote's 20%. Katana Librarian also leads on rating (4.1 vs 2.2) and update cadence (monthly vs every 5 months). THR Remote's advantage is in-app purchases (none vs 1) and ratings volume (163 vs 52). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Katana Librarian sells 1 one-off in-app purchase. THR Remote asks for nothing beyond the download.

Katana Librarian holds the better App Store score, 4.1 against 2.2. Both are backed by a comparable volume of ratings — 163 and 52 respectively. Written reviews point the same way: 20% of THR Remote's written reviews are positive against 63% of Katana Librarian's.

THR Remote ships an update every 5 months, Katana Librarian monthly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | THR Remote | Katana Librarian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (163 ratings)](https://appshunter.io/ios/app/thr-remote/id1477269655/reviews) | **[4.1 (52 ratings)](https://appshunter.io/ios/app/katana-librarian/id1616920240/reviews)** |
| Number of ratings | **163** | 52 |
| Positive reviews | 20.1% of reviews | **63.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation](https://appshunter.io/developer/353469356) | [1000452063 ONTARIO INC.](https://appshunter.io/developer/1616920242) |

## What reviewers say

### THR Remote

[App page](https://appshunter.io/ios/app/thr-remote/id1477269655)

Wirelessly sculpt guitar tones with this app, offering deep editing for effects, compression, and noise gate. Control amplifier settings and assign footswitches for hands-free operation.

**Highlights:** Wireless Bluetooth tone sculpting, Deep editing for effects, Access compressor and noise gate, Assign Bluetooth footswitch, Adjust EQ for music playback, Control line out and USB out levels

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast Bluetooth connection
- 👍 Intuitive app interface
- 🎨 Expanded amp functionality
- 💯 Great tones from the amp

**What reviewers complain about**

- 🐛 Frequent Bluetooth disconnects
- 🐛 App crashes when changing presets
- 🐛 Buggy and unstable app
- 🤯 Unusable app after updates

**Reported bugs**

- App freezes when switching between presets
- Bluetooth connection issues after firmware updates
- App crashes on startup or during use
- Inability to control amp parameters through app

**Requested features**

- Ability to store and recall more presets
- Preset sharing and exchange functionality
- Ability to control amp from other apps
- Improved preset management and organization


### Katana Librarian

[App page](https://appshunter.io/ios/app/katana-librarian/id1616920240)

Unlock the full potential of your BOSS Katana amplifier by connecting wirelessly via Bluetooth. Manage, edit, and organize your amp's patches, effects, and settings. Access advanced features and emulate pedal functionality for a seamless playing experience.

**Highlights:** Download and manage amp patches, Edit patch parameters and effects, Organize patches into groups and setlists, Import/export TSL files, Emulate GA-FC pedal functionality, Access undocumented amp features, Hands-free switching with MIDI/HID footswitch

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $15.95 | one-time |

**What reviewers like**

- 👍 Great app for managing patches
- 💡 Useful for editing on the go
- 🚀 Fast and smooth operation (when working)
- 👍 Intuitive UI and options
- 💡 Opens up amp potential

**What reviewers complain about**

- 🐛 Unreliable and crashes often
- 🐛 Freezes on library page
- 🐛 Cannot connect to amp
- 🐛 Cannot download tsl files
- 🐛 Limited patch variety

**Reported bugs**

- App stops working after iOS update
- App freezes when accessing content or connecting to amp
- Cannot download tsl files
- App constantly hangs and needs restarting
- App is highly unstable, crashing frequently

**Requested features**

- Support for Katana Go
- Support for Bass Katana combos (KTN210B)
- More rhythm patches and genre variety
- Support for new devices (Bass, Go)
- Improve VoiceOver compatibility


## Frequently asked questions

### Is THR Remote free?

THR Remote is free to download, with no in-app purchases.

### Is Katana Librarian free?

Katana Librarian is free to download, with in-app purchases available.

### Which has better reviews, THR Remote or Katana Librarian?

Katana Librarian is rated higher. THR Remote averages 2.2 out of 5 from 163 ratings, while Katana Librarian averages 4.1 from 52 ratings.

### Do THR Remote or Katana Librarian have ads?

Neither THR Remote nor Katana Librarian shows ads.

### Which is updated more often, THR Remote or Katana Librarian?

THR Remote ships an update every 5 months, and Katana Librarian monthly. Most recently, THR Remote was updated on November 3, 2026 and Katana Librarian on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*