# SL Udisk vs Usb Transfer

The clearest difference is in-app purchases: SL Udisk at none against Usb Transfer's 3. SL Udisk also leads on iOS requirement (8.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Usb Transfer sells 3 in-app purchases, starting at $2.99 per month. SL Udisk asks for nothing beyond the download.

SL Udisk ships an update every 6 weeks, Usb Transfer every 3 weeks. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SL Udisk | Usb Transfer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/sl-udisk/id1137419219/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 89 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Shiling Digital Technology.co., Ltd](https://appshunter.io/developer/1137419218) | [Changsha Fugui Bamboo Network Technology Co., Ltd.](https://appshunter.io/developer/1458061020) |

## What reviewers say

### SL Udisk

[App page](https://appshunter.io/ios/app/sl-udisk/id1137419219)

Expand your iOS device's storage with this portable flash drive. Seamlessly transfer, view, and manage files between your iOS devices and computers without needing Wi-Fi or a network signal. It offers file encryption and contact backup for added security and convenience.

**Highlights:** Two-way storage between iOS and MAC/PC, No Wi-Fi or network signal required, Seamless file transfer, viewing, and sharing, Organize, edit, and manage files, Play music and videos directly from the drive, File encryption, Contacts backup and restore

**Features:** macOS Compatibility

**In-app purchases:** none


### Usb Transfer

[App page](https://appshunter.io/ios/app/usb-transfer/id6504265361)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $2.99 | per month |
| 季会员 | $3.99 | per 3 months |
| 年会员 | $9.99 | per year |


## Frequently asked questions

### Is SL Udisk free?

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

### Is Usb Transfer free?

Usb Transfer is free to download, with in-app purchases available.

### Do SL Udisk or Usb Transfer have ads?

Neither SL Udisk nor Usb Transfer shows ads.

### Which is updated more often, SL Udisk or Usb Transfer?

SL Udisk ships an update every 6 weeks, and Usb Transfer every 3 weeks. Most recently, SL Udisk was updated on October 9, 2026 and Usb Transfer on October 18, 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.*