DUO vs Keepsake AI
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
Read full descriptionHide full description
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.
Keepsake AI
This app acts as a digital bridge, allowing you to back up photos, videos, and files from your smartphone directly to a connected USB storage device. It offers anytime, anywhere access to your data, ensuring your important memories and documents are safely stored off your phone.
- Backup photos and videos
- Backup files
- Connects to USB storage
- Anytime, anywhere access
- Direct smartphone connection
Read full descriptionHide full description
It's a smartphone USB stick that connects directly to your phone to back up everything, such as photos, videos, files and more, anytime, anywhere
Screenshots
Verdict
The clearest difference is in-app purchases: DUO at none against Keepsake AI's 4. DUO also leads on review sentiment (13% vs 0%) and ratings volume (52 vs 7). Keepsake AI's advantage is rating (2.1 vs 1.9). 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. Keepsake AI sells 4 one-off in-app purchases. DUO asks for nothing beyond the download.
Keepsake AI holds the better App Store score, 2.1 against 1.9. That said, the two scores are not equally well evidenced: DUO has 52 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 13% of DUO's written reviews are positive against 0% of Keepsake AI's, so the app with the better star average is not the one people write more warmly about.
DUO ships an update every 5 weeks, Keepsake AI every 3 weeks. The most recent releases landed on October 15, 2026 and September 22, 2026 respectively.
| Parameter | DUO | Keepsake AI |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (52 ratings) | 2.1 (7 ratings) — better |
| Positive reviews | 12.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 52 — better | 7 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 31 MB | 116 MB |
| Age rating | 4+ | 17+ |
| Developer | Gopod Group Limited | Me Too Software |
Customer experience
DUO
Keepsake AI
In-app purchases
DUO
No in-app purchases
Keepsake AI
- Package 4$2.99
- 200 Credits$19.99
- 600 Credits$49.99
Show 1 moreShow fewer
- Package 4$99.99
