# Usb Transfer vs Sat

The clearest difference is in-app purchases: Sat at none against Usb Transfer's 3. Usb Transfer's advantage is iOS requirement (12.0 vs 15.5). 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. Sat asks for nothing beyond the download.

Usb Transfer ships an update every 3 weeks, Sat every 5 weeks. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Usb Transfer | Sat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 91 MB | 409 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Changsha Fugui Bamboo Network Technology Co., Ltd.](https://appshunter.io/developer/1458061020) | [Geosolution i Goteborg AB](https://appshunter.io/developer/6776122441) |

## What reviewers say

### Usb Transfer

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

**Features:** macOS Compatibility

**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 |


### Sat

[App page](https://appshunter.io/ios/app/sat-slam/id6776122439)

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

**In-app purchases:** none


## Frequently asked questions

### Is Usb Transfer free?

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

### Is Sat free?

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

### Do Usb Transfer or Sat have ads?

Neither Usb Transfer nor Sat shows ads.

### Which is updated more often, Usb Transfer or Sat?

Usb Transfer ships an update every 3 weeks, and Sat every 5 weeks. Most recently, Usb Transfer was updated on September 15, 2026 and Sat on September 20, 2026.

---

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