EFX Mobile vs efX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EFX Mobile
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.
- OTG remote control
- Device management
- Parameter control
- Function engagement
- USB-C connectivity
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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
efX
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.
- 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
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See the status of all your x-ray systems. Monitor your system usages on the go for maximum efficiency. Connecting your NSI x-ray system(s) with the app is easy. Simply download the app, scan the QR code in efX-DR and you’re ready to go! Once you and your system are registered, keep up to date with what your system is doing from anywhere. No need to stand next to your system to wait for that scan to finish. KEEP AN EYE ON THE BIG PICTURE • View all your x-ray systems at once • See which systems are currently in use. • Option for enterprise management of your x-ray systems and mobile devices STAY UPDATED • View live data for your x-ray systems. Keep up to date with the progress of your scans • See the status of your x-ray: progression, interruption, completion • Preview what your system is scanning. • Allows private mode setting for secure environments. A North Star Imaging X-ray system, efX software, and active NSI service agreement is required to use this app.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | EFX Mobile | efX |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (12 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 12 — better | 3 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.3 | 8.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Cherub Technology Co. Ltd | North Star Imaging, Inc. |
Customer experience
EFX Mobile
efX
In-app purchases
EFX Mobile
No in-app purchases
efX
No in-app purchases
