# U vs UBackup

The clearest difference is review sentiment: U at 29% against UBackup's 10%. U also leads on rating (2.3 vs 2.0) and iOS requirement (12.1 vs 15.0). UBackup's advantage is update cadence (every 4 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

U holds the better App Store score, 2.3 against 2.0. Both are backed by a comparable volume of ratings — 49 and 85 respectively. Written reviews point the same way: 29% of U's written reviews are positive against 10% of UBackup's.

U ships an update every 3 months, UBackup every 4 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | U | UBackup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (49 ratings)](https://appshunter.io/ios/app/u-disk/id1119397038/reviews)** | [2.0 (85 ratings)](https://appshunter.io/ios/app/ubackup/id6462404279/reviews) |
| Number of ratings | 49 | **85** |
| Positive reviews | **29.4% of reviews** | 9.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 52 MB | 105 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [岚 丁](https://appshunter.io/developer/1465584117) | [Shenzhen Dianzhui Culture Technology Co., Ltd.](https://appshunter.io/developer/1529082388) |

## What reviewers say

### U

[App page](https://appshunter.io/ios/app/u-disk/id1119397038)

Expand your iOS device's storage with this portable flash drive. Seamlessly transfer, view, and manage files between your iPhone/iPad and Mac/PC without needing Wi-Fi or a network signal. Features include file encryption and contact backup.

**Highlights:** Memory expansion for iOS devices, Two-way storage transfer (iOS to Mac/PC), No Wi-Fi or network signal required, Transfer, view, and share files, File encryption, Contacts backup and restore, Video streaming via Airplay

**In-app purchases:** none


### UBackup

[App page](https://appshunter.io/ios/app/ubackup/id6462404279)

Securely back up your photo albums and contacts without worrying about storage limits or cloud privacy. This app uses an Apple USB drive for reliable data protection, preventing data loss.

**Highlights:** Backup photo albums, Backup contacts, No iCloud storage limits, Enhanced privacy and security, Uses Apple USB drive, Prevent data loss

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use (initially)
- 👍 Works with Android/laptops
- 👍 Good for moving media between devices (sometimes)

**What reviewers complain about**

- 😞 Does not work with iOS devices
- 😞 Data loss/corruption
- 😞 Videos/photos not playable
- 😞 Drive not recognized
- 😞 App eats data

**Reported bugs**

- App does not save videos that play
- Cannot clear cache
- App continues to fill up
- Drive not recognized on any device
- Lost photos/cannot retrieve

**Requested features**

- Ability to rename files in-app
- Ability to back up to specific folders
- Improved media player/playlist functionality
- Fix for live photo backup


## Frequently asked questions

### Is U free?

U is free to download, with no in-app purchases.

### Is UBackup free?

UBackup is free to download, with no in-app purchases.

### Which has better reviews, U or UBackup?

U is rated higher. U averages 2.3 out of 5 from 49 ratings, while UBackup averages 2.0 from 85 ratings.

### Do U or UBackup have ads?

Neither U nor UBackup shows ads.

### Which is updated more often, U or UBackup?

U ships an update every 3 months, and UBackup every 4 weeks. Most recently, U was updated on October 26, 2026 and UBackup on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*