# 智能门禁专家 vs Zerofast

The clearest difference is in-app purchases: 智能门禁专家 at none against Zerofast's 4. 智能门禁专家 also leads on device support and iOS requirement (9.0 vs 15.0). On price there is nothing between them.

Both are free to download. Zerofast sells 4 one-off in-app purchases. 智能门禁专家 asks for nothing beyond the download.

## The numbers

| Metric | 智能门禁专家 | Zerofast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 4 days | — |
| Size | 25 MB | 31 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Xi'an iRain IOT Technology Service CO., Ltd.](https://appshunter.io/developer/1002789851) | [Shanghai Yangyun Network Technology Co., Ltd.](https://appshunter.io/developer/1641732430) |

## What reviewers say

### 智能门禁专家

[App page](https://appshunter.io/ios/app/id1479489727)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 智能门禁专家 free?

智能门禁专家 is free to download, with no in-app purchases.

### Is Zerofast free?

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

---

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