uDisk vs iExpand
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.
iExpand
This utility allows users to read data from microSD cards using a Lightning connector. It offers traditional data reading capabilities along with features for backing up contacts and copying pictures.
- microSD card reader
- Lightning connector compatible
- External device operation
- Traditional data reading
- Contact backup
- Picture copying
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iExpand is an operated software of microSD card reader,which is made for Lightning connector.Working with external device,except traditional data reading function，it also can be used for reading data,backup contacts and copying pictures etc.
Screenshots
Verdict
The clearest difference is review sentiment: uDisk at 84% against iExpand's 21%. uDisk also leads on rating (4.3 vs 2.4) and ratings volume (247 vs 31). iExpand's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 11.0). On price, update cadence, ads and device support 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. iExpand asks for nothing beyond the download.
uDisk holds the better App Store score, 4.3 against 2.4. That said, the two scores are not equally well evidenced: uDisk has 247 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 84% of uDisk's written reviews are positive against 21% of iExpand's.
uDisk ships an update every 2 months, iExpand every 3 months. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.
| Parameter | uDisk | iExpand |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (247 ratings) — better | 2.4 (31 ratings) |
| Positive reviews | 83.8% of reviews — better | 21.0% of reviews |
| Number of ratings | 247 — better | 31 |
| Update frequency | Every 2 months — better | Every 3 months |
| 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 | 8.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Brown Bear Technology Co., LTD | Shenzhen Reflying Electronic Co., Ltd |
Customer experience
uDisk
iExpand
User reviews
uDisk
From 247 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
iExpand
From 31 App Store ratingsWhat we love
- 👍 Useful for transferring photos
- 👍 Can transfer music collection
- 👍 Good for managing photos on iPad
- 👍 Can store PDFs and other records
- 👍 Works well for some users
Room to improve
- ❌ Does not work at all
- ❌ Useless app
- ❌ Worthless
- ❌ Waste of money and time
- ❌ Garbage
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
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- 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
iExpand
Reported bugs
31 issues- App crashes
- Errors during file transfer
- Cannot save or move files to external drive
- App not showing in device settings
- Drive not recognized after app update
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- Cannot find SD card storage
- Extremely slow performance
- Device storage issues (nothing shown to transfer)
- No video playback on newer iOS versions
- Uploaded photos come out of order
- Freezes and crashes during photo loading
- Some GIFs and photos uploaded are blank
- File names get corrupted during transfer
- Cannot preview videos on newer iOS versions
- Photos lost
- SD card media files not read
- SD card option remains greyed out
- Edited photo also copies original photo
- Files copied from iPad to card are deleted from SD card when deleted from iPad
- Files renamed to long hex numbers
- No audio on media videos
- Cannot copy files or save contacts
- Computer doesn't recognize the device
- Won't recognize SD card
- Only a fraction of photos are loaded
- Contact backup option is greyed out
- Does not work with Micro SD cards above 4GB
- Cannot see SD card
- Audio issue with iOS 13 fixed
- Video issue with iOS 13 fixed
- App doesn't list on save-to options from Safari
Requested features
13 requests- Add ability to send files to iExpand from other apps
- Improve file transfer reliability for large amounts of photos/videos
- Fix issue with other file types not being savable to U盘
- Add ability to play music outside of the app
- Fix video playback issues on newer iOS versions
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- Allow users to play music outside of the app
- Fix issue with edited photos also copying original
- Add ability to password lock folders or encrypt SD card
- Add ability to send data to iCloud or other apps
- Add ability to read epub books and comic books
- Fix dark theme issues and swiping between photos
- Fix file name corruption during transfer
- Allow playback of music outside the app
In-app purchases
uDisk
- Pro Version$3.99
iExpand
No in-app purchases
