# 夏普智能门锁 vs 启纬NFC锁

The clearest difference is device support: 启纬NFC锁 at 2 against 夏普智能门锁's —. 夏普智能门锁's advantage is iOS requirement (9.2 vs 15). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 夏普智能门锁 | 启纬NFC锁 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 months |
| Size | 73 MB | 38 MB |
| Requires iOS | **9.2** | 15 |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Dnake](https://appshunter.io/developer/988715023) | [杭州启纬科技有限公司](https://appshunter.io/developer/1569777902) |

## What reviewers say

### 夏普智能门锁

[App page](https://appshunter.io/ios/app/id1635091235)

**In-app purchases:** none


### 启纬NFC锁

[App page](https://appshunter.io/ios/app/nfc/id6444053400)

**In-app purchases:** none


## Frequently asked questions

### Is 夏普智能门锁 free?

夏普智能门锁 is free to download, with no in-app purchases.

### Is 启纬NFC锁 free?

启纬NFC锁 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.*