Comparison

uDisk vs i

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

i

Expand your iPhone and iPad storage with a portable drive that offers universal content access. Transfer files, back up your camera roll, and manage media with ease, even without an internet connection. Supports a wide range of formats and offers robust security features.

Highlights
  • Bi-directional Lightning and USB connector
  • Universal content access and portability
  • Comprehensive media format support
  • Camera Roll and Contacts backup
  • File encryption
  • Direct saving to flash drive
  • UHD 4K video recording
Features
Read full description

Overview The i-Memory features a bi-directional Lightning and USB connector for Apple iOS storage expansion with universal content access and portability. It is fully certified for iPhone, iPad, and iPod, allowing data transfer between them and PCs with plug and play ease. From songs to Ultra HD 4K files, users can move data free from network bandwidth or internet availability limitations. Even today, convenient and spacious physical storage is faster and more reliable than online storage, and works anywhere so you’re always in touch with content. Key Functions: 1. Comprehensive media format support The i-Memory supports nearly 40 popular media formats. For video, these include MOV, MP4, AVI, WMV, RMVB, and MKV, among others. All major audio standards are supported, alongside JPG, BMP, PNG, GIF and other image formats. i-Memory compatibility extends to the RAW file extension, leading to optimal content coverage and seamless access. 2. Camera Roll backup Keep snapping pics and capturing videos with your iPhone without worrying about on-device space running out. Quickly back up your entire Camera Roll to the i-Memory to free up capacity on your iPhone. This is especially useful while on vacation or at special events and whenever uploading to cloud storage isn’t feasible. The spacious i-Memory is there when you need it. 3. Intuitive content management We include the i-Memory app for user friendly management of all content stored on the UE710. The app works on iPhone, iPad, iPod, enabling access to documents, videos, music, and photos. Check available storage, copy, delete, rename, and preview content of videos and photos: all through a simple and fast interface. New Features: 1. One touch backup for Camera Roll / Contacts 2. Single file, multi-file, and folder-wide encryption 3. i-Memory Camera: - Save photos / videos directly to Flash drive - Built in multiple filters effects for photos - Up to UHD 4K (3840 x 2160) video recording 4. Subtitle format support: SRT, ASS, Sub 5. Support lossless Audio format: FLAC, APE, ALAC 6. RAW file preview and copy to device Camera Roll 7. Live Photos backup support on iOS 10 8. Support Chromecast for video / photo cast 9. Support AirPods music playback 10. App Lock: AI920 Flash Drive encryption via App

Screenshots

uDisk4 screens
i4 screens

Verdict

The call

The clearest difference is review sentiment: uDisk at 84% against i's 15%. uDisk also leads on rating (4.3 vs 2.8) and ratings volume (233 vs 23). i's advantage is in-app purchases (none vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. uDisk sells 1 one-off in-app purchase. i asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

uDisk holds the better App Store score, 4.3 against 2.8. That said, the two scores are not equally well evidenced: uDisk has 233 ratings behind it against 23, 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 15% of i's.

UpkeepUpdate frequency

uDisk ships an update every 2 months, i every 5 weeks. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 5 level
uDisk versus i: the parameters behind the verdict, then further details
ParameteruDiski
PriceFreeFree
Rating4.3 (233 ratings) — better2.8 (23 ratings)
Positive reviews83.7% of reviews — better15.4% of reviews
Number of ratings233 — better23
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.010.0 — better
Further details — not scored
Size20 MB72 MB
Age rating4+4+
DeveloperShenzhen Brown Bear Technology Co., LTDADATA Technology Co., Ltd.

Customer experience

uDisk

All ratings233 ratings
Positive82.8%
Neutral4.7%
Negative12.4%
Written reviews104 reviews
Positive83.7%
Neutral4.8%
Negative11.5%

i

All ratings23 ratings
Positive39.1%
Neutral8.7%
Negative52.2%
Written reviews253 reviews
Positive15.4%
Neutral10.3%
Negative74.3%

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 more
  • 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

i

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

uDisk

One-time1
  • Pro Version$3.99
None

i

No in-app purchases

Questions

Is uDisk free?
uDisk is free to download, with in-app purchases available.
Is i free?
i is free to download, with no in-app purchases.
Which has better reviews, uDisk or i?
uDisk is rated higher. uDisk averages 4.3 out of 5 from 233 ratings, while i averages 2.8 from 23 ratings.
Do uDisk or i have ads?
Neither uDisk nor i shows ads.
Which is updated more often, uDisk or i?
uDisk ships an update every 2 months, and i every 5 weeks. Most recently, uDisk was updated on September 17, 2026 and i on September 20, 2026.

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