# 牟牟 vs ESL System｜

The clearest difference is update cadence: ESL System｜ at every 2 weeks against 牟牟'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.

牟牟 ships an update every 5 months, ESL System｜ every 2 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 牟牟 | ESL System｜ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 25 MB | 42 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [厦门谷道集团](https://appshunter.io/developer/1448447660) | [Soarfree](https://appshunter.io/developer/1746430123) |

## What reviewers say

### 牟牟

[App page](https://appshunter.io/ios/app/id1448447661)

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

**In-app purchases:** none


### ESL System｜

[App page](https://appshunter.io/ios/app/esl-system/id6502671453)

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

**In-app purchases:** none


## Frequently asked questions

### Is 牟牟 free?

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

### Is ESL System｜ free?

ESL System｜ is free to download, with no in-app purchases.

### Do 牟牟 or ESL System｜ have ads?

Neither 牟牟 nor ESL System｜ shows ads.

### Which is updated more often, 牟牟 or ESL System｜?

牟牟 ships an update every 5 months, and ESL System｜ every 2 weeks. Most recently, 牟牟 was updated on October 29, 2026 and ESL System｜ on October 25, 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.*