# MZD数字钥匙 vs 叮当宝盒

The clearest difference is in-app purchases: MZD数字钥匙 at none against 叮当宝盒's 3. 叮当宝盒's advantage is update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 叮当宝盒 sells 3 one-off in-app purchases. MZD数字钥匙 asks for nothing beyond the download.

MZD数字钥匙 ships an update every 3 months, 叮当宝盒 monthly. The most recent releases landed on September 11, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | MZD数字钥匙 | 叮当宝盒 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 36 MB | 52 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [USTL Internet of Things Co., Ltd.](https://appshunter.io/developer/1494250730) | [杭州慧捷车联科技有限公司](https://appshunter.io/developer/1699158682) |

## What reviewers say

### MZD数字钥匙

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 叮当宝盒

[App page](https://appshunter.io/ios/app/id6447834608)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP数据服务套餐-12个月 | $24.99 | one-time |
| VIP数据服务套餐-24个月 | $39.99 | one-time |
| VIP数据服务套餐-36个月 | $59.99 | one-time |


## Frequently asked questions

### Is MZD数字钥匙 free?

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

### Is 叮当宝盒 free?

叮当宝盒 is free to download, with in-app purchases available.

### Do MZD数字钥匙 or 叮当宝盒 have ads?

Neither MZD数字钥匙 nor 叮当宝盒 shows ads.

### Which is updated more often, MZD数字钥匙 or 叮当宝盒?

MZD数字钥匙 ships an update every 3 months, and 叮当宝盒 monthly. Most recently, MZD数字钥匙 was updated on September 11, 2026 and 叮当宝盒 on August 13, 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.*