Features & Capabilities

UAFX Control is the companion application for Universal Audio's line of stompbox effects pedals.

You can use the app to customize pedal features and more.

What's New in v3.0.5 • Fixed slider value and slider responsiveness issues

What's New in v3.0.4 • OX Stomp editor and preset improvements • Other minor fixes and enhancements

What's New in v3.0.2 • Minor bug fixes and improvements

What's New in v3.0.1 • Bluetooth redesigned for faster connections and rock-solid reliability • Support for new features in UAFX firmware version 2.0 • (OX Stomp) Off-Axis mic states are now correctly displayed

Note that UAFX firmware updates are only available using the UA Connect desktop application, available at: uaudio.com/uafx/start

User Growth & Download Statistics

App
By:
Universal Audio
Rating:
1.90
(23)
Version:
3.0.5 Last updated: 2026-04-29
Version code:
884830461
Creation date:
2021-06-21
Compatible devices:
Size:
60.24MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-08
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Universal Audio
Apple Apps Store
https://apps.apple.com/us/app/uafx-control/id1553495098
Website:
http://www.uaudio.com/uafx

User Reviews

Review consensus: the pedals sound excellent and the app offers powerful preset/IR features, but reliability is the key pain point, with persistent connectivity problems, MIDI/Bluetooth bugs, crashes, and UI gaps undermining usability across iPhone and iPad.
Pros
  • Great-sounding UAFX pedals with versatile tones.
  • App provides useful preset management features like on-the-fly switching and IR loading for live use.
  • Some users report easy initial pairing and setup when the connection is stable.
Cons
  • Unreliable connectivity with frequent disconnects and long or failed reconnections to pedals.
  • Buggy Bluetooth/MIDI behavior that can cause presets to not save or parameters to cross between presets.
  • App crashes or becomes unresponsive during connection attempts or after pedal firmware updates.
  • UI limitations, such as not showing current pedal settings or knob positions, and uneven iPad compatibility.
Recent reviews
Could this be any worse? It constantly drops connection with my ox stomp. I have to restart it constantly just to change one microphone. Sometimes it will change cabinets, but not microphones. Sometimes it will change microphones, but not cabinets. Sometimes it won’t let me rename something. Sometimes it crashes getting it to work is basically impossible. I have updated both the firmware and the app to the latest versions as of late May 2026 what a joke fix this or just go away.
by Em*****, 2026-05-26

Multiple attempts are required to connect to a pedal (either wired or bluetooth). Then when the pedal does connect, don’t you dare let it go idle, or exit the app. You’ll have to start all over again. At times only certain adjustments will reflect on the pedal. And the Bluetooth connectivity is really buggy, causing presets to not be saved, and the app crisscrossing parameters into the wrong preset and messing up the ones you did have saved. I have the Ruby, Lion, and Ox, which all sound great. But the app is nearly useless and makes me consider selling the pedals.
by fi*****, 2026-04-02

Ok. Let me start here. The pedal sounds incredible. Every bit what I had hoped for in a versatile delay. Great. Good job. The bad: The midi interface is frankly, the worst I have ever worked with. I have been SCREAMING INTO THE VOID trying to get this app to acknowledge that I am pressing ‘CONFIRM’ trying to assign a PC preset. It WILL NOT WORK. Why? Tell me why? It worked once. Hadn’t worked since. I bought this in the hopes that it would be a high quality addition to my gigging board and work comfortably alongside my boss and eventide pedals WHICH HAVE ON BOARD MIDI FUNCTIONALITY THAT WORKS SIMPLY AND EFFICIENTLY. I have bought a secondary hub for $50. I bought a new USB C cable for $14. I had to upgrade my power supply to support the 400 mA requirement. $279. I have to use a slot to power the midi interface. I had to download a SECOND app to exit the midi interface. I have had to interact with computers 8 times. I still haven’t successfully midi switched this G*D damned pedal. W. T. A. F. I SHOULD BE PLAYING GUITAR RIGHT NOW.
by Ch*****, 2026-03-31
View all user reviews ›

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