# IMSC91 vs Auto Collection

The clearest difference is update cadence: Auto Collection at every 4 weeks against IMSC91's every 2 months. IMSC91's advantage is iOS requirement (12.0 vs 26.2). 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.

IMSC91 ships an update every 2 months, Auto Collection every 4 weeks. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | IMSC91 | Auto Collection |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Size | 148 MB | 9 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京金奔腾汽车科技有限公司](https://appshunter.io/developer/939116243) | [嘉欣 孙](https://appshunter.io/developer/1886597979) |

## What reviewers say

### IMSC91

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

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

**In-app purchases:** none


### Auto Collection

[App page](https://appshunter.io/ios/app/auto-collection/id6766257990)

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

**In-app purchases:** none


## Frequently asked questions

### Is IMSC91 free?

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

### Is Auto Collection free?

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

### Do IMSC91 or Auto Collection have ads?

Neither IMSC91 nor Auto Collection shows ads.

### Which is updated more often, IMSC91 or Auto Collection?

IMSC91 ships an update every 2 months, and Auto Collection every 4 weeks. Most recently, IMSC91 was updated on October 13, 2026 and Auto Collection on October 12, 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.*