# EHS smart vs 振慧测

The clearest difference is iOS requirement: EHS smart at 10.0 against 振慧测's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 11, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | EHS smart | 振慧测 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 207 MB | 81 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Menhey Technology Co.,Ltd.](https://appshunter.io/developer/1031406646) | [青岛追寻科技有限公司](https://appshunter.io/developer/1753878636) |

## What reviewers say

### EHS smart

[App page](https://appshunter.io/ios/app/ehs-smart/id1388220569)

**In-app purchases:** none


### 振慧测

[App page](https://appshunter.io/ios/app/id1621688544)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EHS smart free?

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

### Is 振慧测 free?

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

### Do EHS smart or 振慧测 have ads?

Neither EHS smart nor 振慧测 shows ads.

### Which is updated more often, EHS smart or 振慧测?

EHS smart ships an update monthly, and 振慧测 monthly. Most recently, EHS smart was updated on November 11, 2026 and 振慧测 on October 30, 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.*