# TetherX vs iUSB Pro

The clearest difference is review sentiment: TetherX at 91% against iUSB Pro's 14%. TetherX also leads on rating (5.0 vs 2.6). iUSB Pro's advantage is ratings volume (1.1K vs 3) and iOS requirement (9.0 vs 18.4). 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.

TetherX holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: iUSB Pro has 1.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 91% of TetherX's written reviews are positive against 14% of iUSB Pro's.

TetherX ships an update every 2 months, iUSB Pro every 3 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | TetherX | iUSB Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tetherx/id1046299294/reviews)** | [2.6 (1.1K ratings)](https://appshunter.io/ios/app/iusb-pro/id1069615726/reviews) |
| Number of ratings | 3 | **1.1K** |
| Positive reviews | **90.9% of reviews** | 14.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 21 MB |
| Requires iOS | 18.4 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tether Technology Ltd](https://appshunter.io/developer/1046299293) | [Shenzhen Feitianxia Technology Co, Ltd.](https://appshunter.io/developer/536103551) |

## What reviewers say

### TetherX

[App page](https://appshunter.io/ios/app/tetherx/id1046299294)

This app provides unified monitoring and control of physical infrastructure, including video surveillance, access systems, and sensors. It offers real-time data, instant notifications, and secure management for professionals across various sites.

**Highlights:** Unified monitoring of video, sensors, and access, Real-time sensor data and environmental monitoring, Alarm status and instant push notifications, Access control management, Secure biometric authentication, Fast, native performance

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

**In-app purchases:** none


### iUSB Pro

[App page](https://appshunter.io/ios/app/iusb-pro/id1069615726)

Expand your Apple device's storage by backing up photos, videos, and contacts to an external device. Capture media directly to external storage and transfer files between devices, including non-Apple ones. Enjoy media stored on your external drive.

**Highlights:** Backup photos and videos, Backup contacts, Save media directly to external storage, Transfer files between devices, Play media from external storage, Expand device storage

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and useful
- 👍 Great app and connector
- 🚀 Smooth file transfer

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Doesn't recognize device
- 🐛 Glitchy and unreliable
- 🐛 Compatibility issues with newer iPhones
- 🐛 Crashes when saving to camera roll

**Reported bugs**

- Doesn't work on iOS 11 or iPhone 8/X
- Folders show as empty even when files are present
- Can't transfer large videos or lots of small files
- Corrupts SD card and makes it unusable

**Requested features**

- Add support for Files app on iOS 11
- Improve music playback features
- Add option to open multiple files at once
- Provide better file management tools


## Frequently asked questions

### Is TetherX free?

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

### Is iUSB Pro free?

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

### Which has better reviews, TetherX or iUSB Pro?

TetherX is rated higher. TetherX averages 5.0 out of 5 from 3 ratings, while iUSB Pro averages 2.6 from 1.1K ratings.

### Do TetherX or iUSB Pro have ads?

Neither TetherX nor iUSB Pro shows ads.

### Which is updated more often, TetherX or iUSB Pro?

TetherX ships an update every 2 months, and iUSB Pro every 3 months. Most recently, TetherX was updated on September 19, 2026 and iUSB Pro on September 24, 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.*