# Zerofast vs GU Smart

The clearest difference is in-app purchases: GU Smart at none against Zerofast's 4. GU Smart also leads on device support and iOS requirement (13.0 vs 15.0). On price there is nothing between them.

Both are free to download. Zerofast sells 4 one-off in-app purchases. GU Smart asks for nothing beyond the download.

## The numbers

| Metric | Zerofast | GU Smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Every 9 months |
| Size | 31 MB | 193 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yangyun Network Technology Co., Ltd.](https://appshunter.io/developer/1641732430) | [GU(Shanghai) Security Co., Ltd](https://appshunter.io/developer/1767363276) |

## What reviewers say

### Zerofast

[App page](https://appshunter.io/ios/app/zerofast/id1641732428)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1天会员 | $0.99 | one-time |
| 30天会员 | $8.99 | one-time |
| 90天会员 | $22.99 | one-time |
| 180天会员 | $46.99 | one-time |


### GU Smart

[App page](https://appshunter.io/ios/app/gu-smart/id6670753385)

**In-app purchases:** none


## Frequently asked questions

### Is Zerofast free?

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

### Is GU Smart free?

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

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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.*