# UAFX Control vs Zero Fret

The clearest difference is rating: Zero Fret at 5.0 against UAFX Control's 2.0. Zero Fret also leads on ads (none vs shown) and update cadence (daily vs every 3 weeks). UAFX Control's advantage is ratings volume (27 vs 1) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zero Fret holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: UAFX Control has 27 ratings behind it against 1, so its average is the more settled of the two.

UAFX Control ships an update every 3 weeks, Zero Fret daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | UAFX Control | Zero Fret |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (27 ratings)](https://appshunter.io/ios/app/uafx-control/id1553495098/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zero-fret/id6805130786/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 9.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 60 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Universal Audio](https://appshunter.io/developer/980695700) | [Patrick Hall](https://appshunter.io/developer/6778912162) |

## What reviewers say

### UAFX Control

[App page](https://appshunter.io/ios/app/uafx-control/id1553495098)

This app enhances the functionality of Universal Audio's stompbox effects pedals. Users can customize pedal features, manage presets, and access new functionalities through firmware updates. It offers improved Bluetooth connectivity for faster and more reliable connections.

**Highlights:** Customize pedal features, Manage presets, Bluetooth connectivity, Firmware update support, OX Stomp editor

**In-app purchases:** none

**What reviewers like**

- 👍 Easy Bluetooth pairing
- 🚀 Presets load quickly
- 💡 Useful preset library
- 🔧 Firmware updates improve functionality

**What reviewers complain about**

- 🐛 Frequent Bluetooth connection issues
- 🐛 App crashes when trying to access pedals
- 🐛 Unreliable app performance
- 🤔 Limited preset customization options
- 🤔 Lack of visual feedback on preset settings

**Reported bugs**

- App crashes after firmware updates
- Pedals not detected or recognized by app
- Registration process often fails
- Bluetooth connection randomly drops

**Requested features**

- Ability to freely assign pedal buttons
- Option to view and edit preset settings
- MIDI support for preset changes
- Landscape mode support on iPad


### Zero Fret

[App page](https://appshunter.io/ios/app/zero-fret/id6805130786)

This app provides a visual and haptic guitar and bass tuning experience. It displays string wobble and offers tactile feedback to guide tuning adjustments, supporting a wide range of instruments and custom tunings.

**Highlights:** Visual string wobble indicator, Haptic feedback for tuning guidance, Support for guitar, bass, ukulele, and more, Custom tuning creation and saving, Chromatic fallback tuning, Adjustable reference pitch

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

**In-app purchases:** none


## Frequently asked questions

### Is UAFX Control free?

UAFX Control is free to download, with no in-app purchases.

### Is Zero Fret free?

Zero Fret is free to download, with no in-app purchases.

### Which has better reviews, UAFX Control or Zero Fret?

Zero Fret is rated higher. UAFX Control averages 2.0 out of 5 from 27 ratings, while Zero Fret averages 5.0 from 1 ratings.

### Do UAFX Control or Zero Fret have ads?

UAFX Control shows ads; Zero Fret does not.

### Which is updated more often, UAFX Control or Zero Fret?

UAFX Control ships an update every 3 weeks, and Zero Fret daily. Most recently, UAFX Control was updated on November 3, 2026 and Zero Fret on October 31, 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.*