uDisk vs Cmiot HDD
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.
Cmiot HDD
Access, download, and manage files like movies, photos, and documents from smart storage devices. Stream videos, transfer files to free up mobile space, and automatically back up your media and contacts. Secure your data with an encrypted space and keep your device updated with OTA firmware upgrades.
- Access files on smart storage
- Download files locally
- Online video playback
- File transfer and upload
- Automatic backup
- Encrypted data space
- OTA firmware upgrade
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Cmiot HDD is a designated APP that matches the use of network intelligent storage products. The main function: 1. After the mobile device is installed, the files of movies, photos, music and documents in the smart memory can be accessed through the local area network and the remote network, and can also be downloaded to the local area for viewing. 2, video playback: online viewing of videos in smart storage, supporting a variety of video formats; 3, file transfer: Support upload photos, videos and other files on the mobile device to the smart memory, release the space of mobile device ; 4, file management: support create a new folder, customized upload path, free control of the wireless memory files; 5, automatic backup: one button opens pictures, videos, contacts backup, easy and convenient management of albums; 6, encrypted space: security data is not leaked; 7, OTA firmware upgrade: support easily detect, download and upgrade the wireless memory firmware;
Screenshots
Verdict
The clearest difference is rating: Cmiot HDD at 5.0 against uDisk's 4.3. Cmiot HDD also leads on in-app purchases (none vs 1) and iOS requirement (8.0 vs 11.0). uDisk's advantage is ratings volume (233 vs 1) and update cadence (every 2 months vs every 4 months). On price, 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. Cmiot HDD asks for nothing beyond the download.
Cmiot HDD holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: uDisk has 233 ratings behind it against 1, so its average is the more settled of the two.
uDisk ships an update every 2 months, Cmiot HDD every 4 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | uDisk | Cmiot HDD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (233 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.7% of reviews | — |
| Number of ratings | 233 — better | 1 |
| Update frequency | Every 2 months — better | Every 4 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 | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Brown Bear Technology Co., LTD | 显祖 张 |
Customer experience
uDisk
Cmiot HDD
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
Cmiot HDD
Not enough reviews yet to summarise bugs or requests.
In-app purchases
uDisk
- Pro Version$3.99
Cmiot HDD
No in-app purchases









