# Catalyst Edit vs Katana Librarian

The clearest difference is rating: Catalyst Edit at 4.7 against Katana Librarian's 4.1. Catalyst Edit also leads on in-app purchases (none vs 1) and ratings volume (261 vs 52). Katana Librarian's advantage is review sentiment (63% vs 27%). On price, update cadence, ads and device support there is nothing between them.

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

Catalyst Edit holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Catalyst Edit has 261 ratings behind it against 52, so its average is the more settled of the two. Written reviews complicate that: 27% of Catalyst Edit's written reviews are positive against 63% of Katana Librarian's, so the app with the better star average is not the one people write more warmly about.

Catalyst Edit ships an update monthly, Katana Librarian every 3 weeks. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Catalyst Edit | Katana Librarian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (261 ratings)](https://appshunter.io/ios/app/catalyst-edit/id1573267266/reviews)** | [4.1 (52 ratings)](https://appshunter.io/ios/app/katana-librarian/id1616920240/reviews) |
| Number of ratings | **261** | 52 |
| Positive reviews | 27.3% of reviews | **63.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 6 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Line 6](https://appshunter.io/developer/356473190) | [1000452063 ONTARIO INC.](https://appshunter.io/developer/1616920242) |

## What reviewers say

### Catalyst Edit

[App page](https://appshunter.io/ios/app/catalyst-edit/id1573267266)

Control and customize your Line 6 Catalyst amplifier directly from your iOS device. Save and load presets, tune your guitar, and access advanced DSP parameters for a more personalized sound.

**Highlights:** Load and save presets, Store presets on amp, Guitar tuning, Access DSP parameters, iOS device control

**Features:** Vision Pro support

**In-app purchases:** none


### Katana Librarian

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

Unlock the full potential of your BOSS Katana amplifier with this app. Connect via Bluetooth to manage, edit, and organize your amp's patches. Access advanced features and control your sound like never before.

**Highlights:** Download patches from amplifier, Modify patch parameters and effects, Organize patches into groups and set lists, Import/export TSL files, Emulate GA-FC pedal functionality, Hands-free patch switching with foot switch, Access undocumented Katana features

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Catalyst Edit free?

Catalyst Edit 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, Catalyst Edit or Katana Librarian?

Catalyst Edit is rated higher. Catalyst Edit averages 4.7 out of 5 from 261 ratings, while Katana Librarian averages 4.1 from 52 ratings.

### Do Catalyst Edit or Katana Librarian have ads?

Neither Catalyst Edit nor Katana Librarian shows ads.

### Which is updated more often, Catalyst Edit or Katana Librarian?

Catalyst Edit ships an update monthly, and Katana Librarian every 3 weeks. Most recently, Catalyst Edit was updated on October 21, 2026 and Katana Librarian on October 18, 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.*