# 悉迹AI vs AMC8数学竞赛

The clearest difference is ads: AMC8数学竞赛 at none against 悉迹AI's shown. AMC8数学竞赛 also leads on update cadence (daily vs every 6 weeks) and iOS requirement (13.0 vs 17.2). On price, 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.

悉迹AI ships an update every 6 weeks, AMC8数学竞赛 daily. The most recent releases landed on September 18, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 悉迹AI | AMC8数学竞赛 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 12 MB | 75 MB |
| Requires iOS | 17.2 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Nanjing Xiji Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1860361678) | [上海奇点数维教育科技有限公司](https://appshunter.io/developer/1876473614) |

## What reviewers say

### 悉迹AI

[App page](https://appshunter.io/ios/app/ai/id6756570058)

**Features:** macOS Compatibility

**In-app purchases:** none


### AMC8数学竞赛

[App page](https://appshunter.io/ios/app/amc8/id6759035351)

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

**In-app purchases:** none


## Frequently asked questions

### Is 悉迹AI free?

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

### Is AMC8数学竞赛 free?

AMC8数学竞赛 is free to download, with no in-app purchases.

### Do 悉迹AI or AMC8数学竞赛 have ads?

悉迹AI shows ads; AMC8数学竞赛 does not.

### Which is updated more often, 悉迹AI or AMC8数学竞赛?

悉迹AI ships an update every 6 weeks, and AMC8数学竞赛 daily. Most recently, 悉迹AI was updated on September 18, 2026 and AMC8数学竞赛 on September 15, 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.*