# 数字钥匙 vs 51DK

The clearest difference is iOS requirement: 数字钥匙 at 13.0 against 51DK's 15.0. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for 数字钥匙 against 5.0 for 51DK. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

数字钥匙 ships an update monthly, 51DK every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | 数字钥匙 | 51DK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1583146099/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/51dk/id1595016316/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 104 MB | 63 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市每开创新科技有限公司](https://appshunter.io/developer/1674687624) | [深圳市卓联启航科技有限公司](https://appshunter.io/developer/1266211236) |

## What reviewers say

### 数字钥匙

[App page](https://appshunter.io/ios/app/id1583146099)

**In-app purchases:** none


### 51DK

[App page](https://appshunter.io/ios/app/51dk/id1595016316)

Transform your smartphone into a car key for seamless vehicle access and control. Manage multiple vehicles, share digital keys with trusted individuals, and track your car's location in real-time for a smarter, safer driving experience.

**Highlights:** Lock/unlock car doors via app, Automatic Bluetooth comfort access, Real-time vehicle location tracking, Temporary digital key sharing, Multi-vehicle management, Security monitoring and theft alerts

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

**In-app purchases:** none


## Frequently asked questions

### Is 数字钥匙 free?

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

### Is 51DK free?

51DK is free to download, with no in-app purchases.

### Which has better reviews, 数字钥匙 or 51DK?

数字钥匙 and 51DK are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 数字钥匙 or 51DK have ads?

Neither 数字钥匙 nor 51DK shows ads.

### Which is updated more often, 数字钥匙 or 51DK?

数字钥匙 ships an update monthly, and 51DK every 3 weeks. Most recently, 数字钥匙 was updated on November 3, 2026 and 51DK on November 3, 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.*