# 问卷网MSS vs 交安车联

The clearest difference is update cadence: 交安车联 at monthly against 问卷网MSS's every 5 months. 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.

问卷网MSS ships an update every 5 months, 交安车联 monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 问卷网MSS | 交安车联 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Size | 5 MB | 92 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [上海众言网络科技有限公司](https://appshunter.io/developer/468621505) | [上海创程车联网络科技有限公司](https://appshunter.io/developer/1011702853) |

## What reviewers say

### 问卷网MSS

[App page](https://appshunter.io/ios/app/mss/id1661089612)

**Features:** macOS Compatibility

**In-app purchases:** none


### 交安车联

[App page](https://appshunter.io/ios/app/id6471542207)

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

**In-app purchases:** none


## Frequently asked questions

### Is 问卷网MSS free?

问卷网MSS is free to download, with no in-app purchases.

### Is 交安车联 free?

交安车联 is free to download, with no in-app purchases.

### Do 问卷网MSS or 交安车联 have ads?

Neither 问卷网MSS nor 交安车联 shows ads.

### Which is updated more often, 问卷网MSS or 交安车联?

问卷网MSS ships an update every 5 months, and 交安车联 monthly. Most recently, 问卷网MSS was updated on November 3, 2026 and 交安车联 on November 4, 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.*