# IMSC91 vs 简迹足信

The clearest difference is iOS requirement: IMSC91 at 12.0 against 简迹足信's 15. 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.

## The numbers

| Metric | IMSC91 | 简迹足信 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 148 MB | 4 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京金奔腾汽车科技有限公司](https://appshunter.io/developer/939116243) | [明强 谷](https://appshunter.io/developer/1891135218) |

## What reviewers say

### IMSC91

[App page](https://appshunter.io/ios/app/imsc91/id1250310840)

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

**In-app purchases:** none


### 简迹足信

[App page](https://appshunter.io/ios/app/id6803315952)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IMSC91 free?

IMSC91 is free to download, with no in-app purchases.

### Is 简迹足信 free?

简迹足信 is free to download, with no in-app purchases.

### Do IMSC91 or 简迹足信 have ads?

Neither IMSC91 nor 简迹足信 shows ads.

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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.*