Comparison

TetherX vs iUSB Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TetherX

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
Read full description

TetherX puts your entire physical infrastructure at your fingertips. Monitor video surveillance, control access systems, track sensors, and manage alarms across all your sites from a single, beautifully designed app. UNIFIED MONITORING - Live video feeds from all your cameras - Real-time sensor data and environmental monitoring - Alarm status and instant notifications - Access control management POWERFUL FEATURES - Push notifications for critical alerts - Secure biometric authentication (Face ID / Touch ID) - Fast, native performance BUILT FOR PROFESSIONALS - Control room operators - Security managers - Facility managers - System integrators TetherX connects to your existing infrastructure through our secure gateway, giving you complete visibility and control whether you're on-site or on the go. Requires a TetherX account. Visit tetherx.io to learn more.

About

iUSB Pro

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
Read full description

This app will allow you to backup photos and contacts, transfer files, take pictures and videos without using internal storage and more. This app will ONLY work with the external backup device it was designed for. If you do not have that device, this app will not do anything. With this app you can: Backup all of your photos and videos with one tap, or select specific photos and videos to backup. Backup all of your contacts. Take pictures and record videos that save directly to your external device without using internal storage on your Apple device. Transfer photos and videos from other devices, including non-Apple devices, to your Apple device. Play movies and television shows saved on your external device. Save files to the external device or transfer files on to your Apple device. If you are looking for a way to expand the storage of your apple device, save the pictures and videos on your apple device, or transfer between devices using different operating systems, this app is the perfect solution. Once you have the recommended external storage device, download this app and get started!

Screenshots

TetherX4 screens
iUSB Pro1 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
TetherX versus iUSB Pro: the parameters behind the verdict, then further details
ParameterTetherXiUSB Pro
PriceFreeFree
Rating5.0 (3 ratings) — better2.6 (1.1K ratings)
Positive reviews90.9% of reviews — better14.0% of reviews
Number of ratings31.1K — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.49.0 — better
Further details — not scored
Size3 MB21 MB
Age rating4+4+
DeveloperTether Technology LtdShenzhen Feitianxia Technology Co, Ltd.

Customer experience

TetherX

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

iUSB Pro

All ratings1,059 ratings
Positive34.8%
Neutral9.3%
Negative55.8%
Written reviews527 reviews
Positive14.0%
Neutral12.0%
Negative74.0%

Bugs and requests

TetherX

Not enough reviews yet to summarise bugs or requests.

iUSB Pro

Reported bugs

4 issues
  • 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

4 requests
  • 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

In-app purchases

None

TetherX

No in-app purchases

None

iUSB Pro

No in-app purchases

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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