# EFX Mobile

> OTG remote control and device management app for NUX effect pedals. (iPhone/iPad app by Cherub Technology Co. Ltd.)

- Source: https://appshunter.io/ios/app/efx-mobile/id1626383725 (this page in markdown: same URL + `.md`)
- Developer: [Cherub Technology Co. Ltd](https://appshunter.io/developer/468999269)
- Category: Utilities, Music
- Price: Free
- Rating: 2.17/5 from 12 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 26 MB
- Released: 2022-09-01
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/efx-mobile/id1626383725/reviews.md

## What is EFX Mobile?

EFXMobile is an OTG remote control and device management APP for NUX effect pedals, like AMP ACADEMY.

Connect to NUX pedals via USB-C with lightning to USB adaptor to access parameter control and engage some functions.

Made for iPhone on iOS version >= 10.0

## Key features

- OTG remote control
- Device management
- Parameter control
- Function engagement
- USB-C connectivity

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/efx-mobile/id1626383725/reviews.md

### 1/5 — NUX Solid Studio MKII

*2025-07-16*

The IOS version  does NOT recognize the MKII.

### 1/5 — App will not connect

*2025-01-01*

I tried everything to get this app on my iPhone to connect to my pedal. Bigger power supplies, different cables - no luck. Connected to my Mac no problems. The problem is I don’t want to lug my Mac around so I can tweak amps and features at rehearsals and gigs. Brilliant pedal but a lemon without the mobile app. Sadly selling the pedal as I cont access the functionality I need from the front panel.

### 1/5 — Wont connect

*2024-10-13*

Ridiculous! Have tried all kinds of cables and will not connect to my iphone. Deleted

### 5/5 — OTG cable

*2024-08-08*

A big plus for me with the Amp Academy is having connectivity with my iPhone. However, as Apple UK site doesn’t list an OTG cable & none of their support people seemed to know of it, can I use the USB-C to Lightning Adapter to make on-the-fly adjustments to tones at gigs?

### 1/5 — Hands down worse app of all time.

*2024-05-11*

The header says it all. Never could get it to work and I’m a 29 year IT guy.

### 1/5 — Does not connect

*2023-09-23*

Tried with multiple cables on multiple devices but will not connect to the pedal

### 3/5 — Works but is very picky with hardware

*2023-08-03*

Had issues getting it to work. Updated firmware on Amp Academy. 
Had bought an Amazon "Apple Certified" OTG adaptor, and used a standard usb C cable from one of my other devices. Didn't work, was just stuck on the first screenshot "please connet device". 
Per support email, went and bought the $30 Apple brand adaptor. Still didn't work. Finally went and bought a specific data USB C cable instead of "just" a charging cable, though I don't see how it would make a difference. Finally worked.
For those who are having issues, Apple brand OTG adaptor (the "camera connector"), and Walmart's "Onn" brand work. Wasn't thrilled to have to spend another $45 to get this working.

App works fine now

### 5/5 — Seems to work & mirrors function of PC editor

*2022-09-09*

Thanks to the developer for following through on creating an iPhone app for editing the NUX Amp Academy.  It seems to work just as the desktop app does, but note that you will need to update the firmware on the AA (Aug 2022 or later) or it won’t recognize it.  You’ll also need a Lightning to USB-C cable or adapter (which I had).  Was pleased to see that it recognized IR cabs stored on the pedal and allows them to be changed by the phone!

## Frequently asked questions about EFX Mobile

### What NUX pedals does EFX Mobile support?

EFX Mobile is designed for NUX effect pedals, specifically mentioning the AMP ACADEMY. It allows for parameter control and function engagement with these devices.

### How do I connect EFX Mobile to my NUX pedal?

You can connect EFX Mobile to your NUX pedals using a USB-C cable and a lightning to USB adaptor. This enables direct access to the pedal's controls.

### What iOS version is required for EFX Mobile?

EFX Mobile requires iOS version 10.0 or later to function correctly on your iPhone, iPad, or iPod.

### Is EFX Mobile available on Android devices?

Based on the provided information, EFX Mobile is made for iPhone and supports iOS devices, indicating it is not currently available for Android.

### How often is EFX Mobile updated?

The latest version of EFX Mobile is 2.4.0326, which was last updated on March 26, 2024. This suggests regular updates are provided.

### What is the user rating for EFX Mobile?

EFX Mobile has a user rating of 2.2 stars based on 12 ratings. This indicates a mixed reception from its current user base.

### Does EFX Mobile have ads?

No, EFX Mobile does not contain advertisements. The app is free to download and use without interruptions from ads.

### Are there any in-app purchases in EFX Mobile?

No, EFX Mobile does not feature any in-app purchases. The app is entirely free to download and use.

## Version history (last 5 releases)

### 2.4.0326 — 2024-03-26

Fix some bugs

### 2.4.0325 — 2024-03-26

Fix some bugs

### 2.4.0203 — 2024-02-06

Fix some issues

### 2.4.0123 — 2024-01-26

AMP ACADEMY(NGS-6)
1. New: 6 meticulously crafted new amp models. LStar, Princetone,Classic A30, Deluxe Rvb, Brit 2000, VIVO.
2. New: 6 related IRs. 
3. New: Knob Locking Feature.
4. Change: Fix some efx switching noises.

### 2.3.0324 — 2023-07-28

This version can adapt with Metal Core Deluxe MKII.

## Apps similar to EFX Mobile

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Midi Suite](https://appshunter.io/ios/app/midi-suite/id6737530581) | 3.1 (7) | Free | Utilities |
| [AIRSTEP TX](https://appshunter.io/ios/app/airstep-tx/id6746193780) | 5.0 (1) | Free | Utilities |
| [AIRSTEP](https://appshunter.io/ios/app/airstep/id1487765085) | 2.3 (6) | Free | Utilities |
| [GTRS](https://appshunter.io/ios/app/gtrs/id1491879128) | 2.7 (13) | Free | Utilities |
| [efX-Mobile](https://appshunter.io/ios/app/efx-mobile/id6447209822) | 5.0 (3) | Free | Utilities |
| [AIRSTEP Updater](https://appshunter.io/ios/app/airstep-updater/id1577663031) | 2.3 (10) | Free | Utilities |

## More apps by Cherub Technology Co. Ltd

- [MightyAmp](https://appshunter.io/ios/app/mightyamp/id1029822466)
- [DT Tune Buddy](https://appshunter.io/ios/app/dt-tune-buddy/id1123491406)
- [Cherub Metro Tuner](https://appshunter.io/ios/app/cherub-metro-tuner/id1151318098)
- [Stageman](https://appshunter.io/ios/app/stageman/id1232481814)
- [Piano Mate](https://appshunter.io/ios/app/piano-mate/id1331848730)

All apps by Cherub Technology Co. Ltd: https://appshunter.io/developer/468999269

## Related topics

[efx mobile](https://appshunter.io/ios/topics/efx-mobile) · [nux mighty amp](https://appshunter.io/ios/topics/nux-mighty-amp) · [nux amp](https://appshunter.io/ios/topics/nux-amp)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*