# 酷斯达 vs MZD数字钥匙

The clearest difference is update cadence: 酷斯达 at monthly against MZD数字钥匙's every 3 months. MZD数字钥匙's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

酷斯达 ships an update monthly, MZD数字钥匙 every 3 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | 酷斯达 | MZD数字钥匙 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 34 MB | 36 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广东开畅科技有限公司](https://appshunter.io/developer/1541593422) | [USTL Internet of Things Co., Ltd.](https://appshunter.io/developer/1494250730) |

## What reviewers say

### 酷斯达

[App page](https://appshunter.io/ios/app/id1577186428)

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

**In-app purchases:** none


### MZD数字钥匙

[App page](https://appshunter.io/ios/app/mzd/id1669684270)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 酷斯达 free?

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

### Is MZD数字钥匙 free?

MZD数字钥匙 is free to download, with no in-app purchases.

### Do 酷斯达 or MZD数字钥匙 have ads?

Neither 酷斯达 nor MZD数字钥匙 shows ads.

### Which is updated more often, 酷斯达 or MZD数字钥匙?

酷斯达 ships an update monthly, and MZD数字钥匙 every 3 months. Most recently, 酷斯达 was updated on November 7, 2026 and MZD数字钥匙 on November 7, 2026.

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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.*