# 魔轮 vs e勘察

The clearest difference is update cadence: e勘察 at fortnightly against 魔轮's every 5 weeks. 魔轮's advantage is iOS requirement (9.0 vs 13.0). 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.

魔轮 ships an update every 5 weeks, e勘察 fortnightly. Both last shipped on September 9, 2026.

## The numbers

| Metric | 魔轮 | e勘察 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 166 MB | 45 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Ronglian Yitong Information Technology Co., Ltd.](https://appshunter.io/developer/569407631) | [China Jikan Research Institute Of Engineering Investigations And Design, Co., Lt d.](https://appshunter.io/developer/1606692541) |

## What reviewers say

### 魔轮

[App page](https://appshunter.io/ios/app/id1071025665)

**In-app purchases:** none


### e勘察

[App page](https://appshunter.io/ios/app/e/id1606692539)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 魔轮 free?

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

### Is e勘察 free?

e勘察 is free to download, with no in-app purchases.

### Do 魔轮 or e勘察 have ads?

Neither 魔轮 nor e勘察 shows ads.

### Which is updated more often, 魔轮 or e勘察?

魔轮 ships an update every 5 weeks, and e勘察 fortnightly. Most recently, 魔轮 was updated on September 9, 2026 and e勘察 on September 9, 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.*