# 车巡IMS vs 声单

The clearest difference is iOS requirement: 车巡IMS at 9.0 against 声单's 17.0. 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.

车巡IMS ships an update every 4 weeks, 声单 every 3 weeks. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 车巡IMS | 声单 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Size | 86 MB | 55 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [杭州车云网络科技有限公司](https://appshunter.io/developer/1165267360) | [杭州百聆科技有限公司](https://appshunter.io/developer/1660197064) |

## What reviewers say

### 车巡IMS

[App page](https://appshunter.io/ios/app/ims/id1165267361)

**Features:** macOS Compatibility

**In-app purchases:** none


### 声单

[App page](https://appshunter.io/ios/app/id6767144795)

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

**In-app purchases:** none


## Frequently asked questions

### Is 车巡IMS free?

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

### Is 声单 free?

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

### Do 车巡IMS or 声单 have ads?

Neither 车巡IMS nor 声单 shows ads.

### Which is updated more often, 车巡IMS or 声单?

车巡IMS ships an update every 4 weeks, and 声单 every 3 weeks. Most recently, 车巡IMS was updated on October 11, 2026 and 声单 on October 17, 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.*