uDisk vs UBackup
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
uDisk
Transform your iOS device into a portable USB drive. Easily transfer files between your device and computer via Wi-Fi or iTunes. Browse, play, and edit various file types directly on your phone or tablet.
- Use iOS device as USB disk
- Wi-Fi file transfer
- iTunes File Sharing
- Browse various file types
- Play music and video
- Edit text files
- Create directories and sort files
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Let your iOS device become a USB disk ! You can use it to transfer files between iOS device and computer by Wifi or iTunes File Sharing. The uDisk support various files browse, music and video play, and text file editing. Tap the toolbar buttons you can view the wifi address, create a directory, sort the files, and change the view mode. Long press the file item, you can move, rename, email and delete the file. Enjoy it ! If any question and suggestion, please contact czh0766@163.com.
UBackup
Securely back up your photo albums and contacts without worrying about storage limits or cloud privacy. This app uses an Apple USB drive for reliable data protection, preventing data loss.
- Backup photo albums
- Backup contacts
- No iCloud storage limits
- Enhanced privacy and security
- Uses Apple USB drive
- Prevent data loss
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UBackup is a powerful application that can help you back up your precious photo albums and contacts at any time. Compared with the space limit of iCloud, UBackup does not require you to worry about insufficient storage space. At the same time, you do not need to worry about privacy and security issues after uploading to the cloud. You only need an Apple USB drive to get rid of the worry of data loss.
Screenshots
Verdict
The clearest difference is review sentiment: uDisk at 84% against UBackup's 10%. uDisk also leads on rating (4.3 vs 2.0) and iOS requirement (11.0 vs 15.0). UBackup's advantage is in-app purchases (none vs 1). On price, ratings volume, update cadence and ads 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. uDisk sells 1 one-off in-app purchase. UBackup asks for nothing beyond the download.
uDisk holds the better App Store score, 4.3 against 2.0. Both are backed by a comparable volume of ratings — 233 and 82 respectively. Written reviews point the same way: 84% of uDisk's written reviews are positive against 10% of UBackup's.
uDisk ships an update every 2 months, UBackup every 4 weeks. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | uDisk | UBackup |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (233 ratings) — better | 2.0 (82 ratings) |
| Positive reviews | 83.7% of reviews — better | 9.7% of reviews |
| Number of ratings | 233 — better | 82 |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 20 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Brown Bear Technology Co., LTD | Shenzhen Dianzhui Culture Technology Co., Ltd. |
Customer experience
uDisk
UBackup
User reviews
uDisk
From 233 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Fast transfer
- 👍 Good for organizing files
- 👍 Useful for freeing up phone space
- 👍 Versatile and durable
Room to improve
- 🐛 Does not work for some users
- 🐛 App requires download to each device
- 🐛 Cannot rotate screen
- 🐛 Does not work as a standalone flash drive
- 🐛 Limited file transfer capability
UBackup
From 82 App Store ratingsWhat we love
- 👍 Easy to use (initially)
- 👍 Works with Android/laptops
- 👍 Good for moving media between devices (sometimes)
Room to improve
- 😞 Does not work with iOS devices
- 😞 Data loss/corruption
- 😞 Videos/photos not playable
- 😞 Drive not recognized
- 😞 App eats data
Bugs and requests
uDisk
Reported bugs
6 issues- Cannot save files manually
- Material does not always show
- Does not work after initial use
- Cannot rotate screen
- Does not transfer videos from phone
Show 1 moreShow fewer
- No permissions requested for file access
Requested features
2 requests- App should be pre-loaded on the thumbdrive
- More clarity on app functionality and safety
UBackup
Reported bugs
40 issues- App does not save videos that play
- Cannot clear cache
- App continues to fill up
- Drive not recognized on any device
- Lost photos/cannot retrieve
Show 35 moreShow fewer
- Latest update caused malfunction
- Drive not recognized on iPhone
- Zero space/won't load
- Cannot save or open files on another device
- Never worked
- Allows backup of only one at a time
- Not recognizing USB stick
- Cannot get it to work
- Files not visible on USB
- Videos uploaded do not play from USB
- App gives scam/hacker vibes
- Deleted everything from phone without permission
- Cannot connect to seller/support
- Flash drive suddenly stopped working
- Pop-up error in Chinese
- Cannot access files
- Cannot backup Apple Live Photos
- Only saves JPEGs, not file types
- Scam text received after allowing app access
- Misleading product description
- Cannot get video from PS4 to iPhone
- Only saved a fraction of photos
- Keeps telling user to insert USB drive
- Does not work reliably
- Backs up only one-third of data
- Files corrupted when transferring to Mac/PC
- Struggling to delete old images
- Cannot delete images efficiently
- Cannot make playlists for music
- Cannot be used repeatedly
- Won't load partitioned large video files
- Backup deletes photos from iCloud
- Shows used space with no photos
- USB disc not connected error
- Support link goes nowhere
Requested features
4 requests- Ability to rename files in-app
- Ability to back up to specific folders
- Improved media player/playlist functionality
- Fix for live photo backup
In-app purchases
uDisk
- Pro Version$3.99
UBackup
No in-app purchases
