# S3 vs Loopback

The clearest difference is price: S3 at Free against Loopback's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

S3 is free to download; Loopback costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | S3 | Loopback |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 months |
| Size | 1 MB | 35 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [超 程](https://appshunter.io/developer/1831639791) | [yifan z](https://appshunter.io/developer/1865765499) |

## What reviewers say

### S3

[App page](https://appshunter.io/ios/app/s3-browser/id6752520914)

**Features:** macOS Compatibility

**In-app purchases:** none


### Loopback

[App page](https://appshunter.io/ios/app/loopback-tunnel-browser/id6757280702)

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

**In-app purchases:** none


## Frequently asked questions

### Is S3 free?

S3 is free to download, with no in-app purchases.

### Is Loopback free?

Loopback costs $0.99, with no in-app purchases.

### Do S3 or Loopback have ads?

Neither S3 nor Loopback shows ads.

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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.*