DUO vs iDiskk Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DUO
Expand storage for your Apple devices and computers. Easily transfer files, back up contacts, and play media directly from the device. Free up space on your iPhone and iPad with this versatile storage solution.
- Expand iPhone/iPad storage
- USB and Lightning connectors
- Contact backup and restore
- Independent music/video playback
- Stream 1080p videos
- File management
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DUO-LINK/DUO-LINK R is a multi-functional storage device for Mac, PC, iPad, iPhone, and iPod touch. Duo-Link has a standard USB interface and a lightning connector for iPhone and iPad. Free up space on your iPhone and iPad. Transfer and share files between your iPhone, iPad & Mac or PC quickly and easily. DUO-LINK Functions： ● Contact list backup and restore. ● Supports independent music and video playback. ● Stream 1080p videos directly from Duo-Link ● File management operations such as copy, delete, export etc. ● Browse files store on DUO-LINK Drive. ● Browse local files stored within Duo-Link App. ● Transfer media and files from iPhone to Duo-Link Drive. Compatibility： ● iPad, iPhone, iPod Touch with lightning connector running iOS version 8.0 or later. ● PCs running Windows XP, Windows 7, and Windows 8. ● Mac computers running Mac OS 10.5 or later.
iDiskk Pro
Manage files on a dual-connector USB drive. Seamlessly transfer data between your iOS device and Mac/PC, back up photos and contacts, and enjoy direct playback of media files. This app unlocks the full potential of your external storage solution.
- Browse files on iDiskk and app
- Transfer files between iDiskk and app
- Backup iOS photos to iDiskk
- Backup and restore iOS contacts
- Direct music and movie playback
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iDiskk is a USB drive with 2 connectors: 1, USB3.0 A, to connect to Mac or PC. In this way, iDiskk acts as a general USB drive. Users can manager files in it, copy, cut, past or delete, ect. Users can also browse files in it directly, including preview documents, playback music and movies. 2, Apple lightning connector, to connect to iOS device with lightning connector. With this app, iDiskk Pro, users can manager files in it, copy, cut, past or delete, ect. Users can also browse files in it directly, including preview documents such as .txt, .doc, .pdf, playback music and movies. (More information could be found on the website http://www.idiskk.com) iDiskk Pro is the App of the iDiskk drive, it supports the following features: * Browse files in the iDiskk. * Browse files in the app. * Transfer files between the iDiskk and the app. * Backup photo in the iOS device to iDiskk. * Backup and restore the contacts in the iOS device. * Independent music and movie playback.
Screenshots
Verdict
The clearest difference is rating: iDiskk Pro at 2.5 against DUO's 1.9. iDiskk Pro also leads on ratings volume (318 vs 52). On price, review sentiment, 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. Neither carries in-app purchases, so what you see is what you pay.
iDiskk Pro holds the better App Store score, 2.5 against 1.9. That said, the two scores are not equally well evidenced: iDiskk Pro has 318 ratings behind it against 52, so its average is the more settled of the two. Written reviews split almost evenly too, at 13% and 14% positive.
DUO ships an update every 5 weeks, iDiskk Pro every 2 months. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.
| Parameter | DUO | iDiskk Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (52 ratings) | 2.5 (318 ratings) — better |
| Positive reviews | 13.2% of reviews | 13.8% of reviews — better |
| Number of ratings | 52 | 318 — better |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 9.0 |
| Further details — not scored | ||
| Size | 31 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Gopod Group Limited | Shenzhen Feitianxia Technology Co, Ltd. |
Customer experience
DUO
iDiskk Pro
Bugs and requests
DUO
Not enough reviews yet to summarise bugs or requests.
iDiskk Pro
Reported bugs
4 issues- App crashes when trying to copy/transfer files
- Device not recognized by app after iOS updates
- Corrupted files after transfer
- Thumbnails not updating correctly after formatting SD card
Requested features
4 requests- Add 'move' option instead of just 'copy'
- Display more file information
- Allow selecting multiple files for transfer
- Improve transfer speed
In-app purchases
DUO
No in-app purchases
iDiskk Pro
No in-app purchases
