# EFX Mobile vs efX

The clearest difference is rating: efX at 5.0 against EFX Mobile's 2.2. EFX Mobile's advantage is ratings volume (12 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

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

efX holds the better App Store score, 5.0 against 2.2. Both are backed by a comparable volume of ratings — 12 and 3 respectively.

EFX Mobile ships an update every 2 months, efX every 3 months. The most recent releases landed on June 11, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | EFX Mobile | efX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (12 ratings)](https://appshunter.io/ios/app/efx-mobile/id1626383725/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/efx-mobile/id6447209822/reviews)** |
| Number of ratings | **12** | 3 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 26 MB | 65 MB |
| Requires iOS | 9.3 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cherub Technology Co. Ltd](https://appshunter.io/developer/468999269) | [North Star Imaging, Inc.](https://appshunter.io/developer/1680582216) |

## What reviewers say

### EFX Mobile

[App page](https://appshunter.io/ios/app/efx-mobile/id1626383725)

Control and manage NUX effect pedals, including the AMP ACADEMY, directly from your iOS device. Connect via USB-C to adjust parameters and engage various functions for your guitar effects.

**Highlights:** OTG remote control, Device management, Parameter control, Function engagement, USB-C connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### efX

[App page](https://appshunter.io/ios/app/efx-mobile/id6447209822)

Monitor the status and usage of your x-ray systems remotely. Track scan progress, view live data, and manage your devices from anywhere. Requires a North Star Imaging X-ray system and service agreement.

**Highlights:** View all x-ray systems at once, Monitor system usage, Track scan progress, View live system data, Enterprise management options, Private mode for secure environments

**In-app purchases:** none


## Frequently asked questions

### Is EFX Mobile free?

EFX Mobile is free to download, with no in-app purchases.

### Is efX free?

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

### Which has better reviews, EFX Mobile or efX?

efX is rated higher. EFX Mobile averages 2.2 out of 5 from 12 ratings, while efX averages 5.0 from 3 ratings.

### Do EFX Mobile or efX have ads?

Neither EFX Mobile nor efX shows ads.

### Which is updated more often, EFX Mobile or efX?

EFX Mobile ships an update every 2 months, and efX every 3 months. Most recently, EFX Mobile was updated on June 11, 2026 and efX on June 4, 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.*