# U vs BLANBOK+

U and BLANBOK+ both sit at 2.3 stars, but that hides the real split: 43% of BLANBOK+'s written reviews are positive against 29% of U's. BLANBOK+ also leads on ratings volume (158 vs 17) and update cadence (every 6 weeks vs every 3 months). On price, rating, 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 2.1. That said, the two scores are not equally well evidenced: BLANBOK+ has 158 ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 29% of U's written reviews are positive against 43% of BLANBOK+'s, so the app with the better star average is not the one people write more warmly about.

U ships an update every 3 months, BLANBOK+ every 6 weeks. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | U | BLANBOK+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (17 ratings)](https://appshunter.io/ios/app/u-disk/id1119397038/reviews)** | [2.1 (158 ratings)](https://appshunter.io/ios/app/blanbok-plus/id1616437857/reviews) |
| Number of ratings | 17 | **158** |
| Positive reviews | 29.4% of reviews | **43.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 52 MB | 28 MB |
| Requires iOS | 12.1 | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [岚 丁](https://appshunter.io/developer/1465584117) | [Shenzhen H.D. Technology Co., Ltd.](https://appshunter.io/developer/1501670907) |

## 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


### BLANBOK+

[App page](https://appshunter.io/ios/app/blanbok-plus/id1616437857)

This app functions as a microSD card reader, enabling you to access and manage data on external storage. It allows for reading files, backing up your contacts, and copying pictures directly from your device.

**Highlights:** MicroSD card reader operation, External storage access, Read data from storage, Backup contacts, Copy pictures

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and efficient file transfers
- 👍 Easy to use interface
- 🔒 Secure data storage
- 💡 Convenient mobile storage solution

**What reviewers complain about**

- 🐛 Frequent app crashes and errors
- 💤 Incompatible with newer iOS devices
- 🤔 Unreliable file backup and recovery
- 🤯 Lost important files and data

**Reported bugs**

- Error codes when transferring files
- Device not recognized by iPhone/iPad
- Corrupted or missing transferred files
- Outdated app version not supporting newer codecs

**Requested features**

- Add thumbnail previews for videos
- Display video file length information
- Option to disable auto-resume video playback
- Improve cross-platform compatibility


## Frequently asked questions

### Is U free?

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

### Is BLANBOK+ free?

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

### Which has better reviews, U or BLANBOK+?

U is rated higher. U averages 2.3 out of 5 from 17 ratings, while BLANBOK+ averages 2.1 from 158 ratings.

### Do U or BLANBOK+ have ads?

Neither U nor BLANBOK+ shows ads.

### Which is updated more often, U or BLANBOK+?

U ships an update every 3 months, and BLANBOK+ every 6 weeks. Most recently, U was updated on September 10, 2026 and BLANBOK+ on September 20, 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.*