# MG数字钥匙 vs RS Charge

MG数字钥匙 and RS Charge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

MG数字钥匙 ships an update every 3 weeks, RS Charge every 4 weeks. The most recent releases landed on September 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | MG数字钥匙 | RS Charge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Size | 78 MB | 50 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [USTL Internet of Things Co., Ltd.](https://appshunter.io/developer/1494250730) | [LUOYANG RUICHUANG ELECTRICAL EQUIPMENT CO., LTD.](https://appshunter.io/developer/1826705678) |

## What reviewers say

### MG数字钥匙

[App page](https://appshunter.io/ios/app/mg/id6740787858)

**Features:** macOS Compatibility

**In-app purchases:** none


### RS Charge

[App page](https://appshunter.io/ios/app/rs-charge/id6748631018)

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

**In-app purchases:** none


## Frequently asked questions

### Is MG数字钥匙 free?

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

### Is RS Charge free?

RS Charge is free to download, with no in-app purchases.

### Do MG数字钥匙 or RS Charge have ads?

Neither MG数字钥匙 nor RS Charge shows ads.

### Which is updated more often, MG数字钥匙 or RS Charge?

MG数字钥匙 ships an update every 3 weeks, and RS Charge every 4 weeks. Most recently, MG数字钥匙 was updated on September 18, 2026 and RS Charge on October 14, 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.*