# 小猿AI vs 错题星

The clearest difference is update cadence: 小猿AI at every 5 days against 错题星's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 小猿AI sells 24 in-app purchases, starting at $3.99 per month and 错题星 sells 15 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

小猿AI ships an update every 5 days, 错题星 every 3 weeks. The most recent releases landed on October 22, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 小猿AI | 错题星 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (4.3K ratings)](https://appshunter.io/ios/app/ai/id1325419855/reviews)** | — |
| Number of ratings | **4.3K** | — |
| Positive reviews | 67.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 241 MB | 95 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Yuanli Science and Technology Co., Ltd.](https://appshunter.io/developer/551536747) | [武汉未来之星人工智能科技有限公司](https://appshunter.io/developer/1770241827) |

## What reviewers say

### 小猿AI

[App page](https://appshunter.io/ios/app/ai/id1325419855)

This AI-powered educational companion assists students with homework, providing instant grading, detailed error analysis, and personalized explanations. It also supports teachers and parents by reducing the burden of checking assignments and offering scientific supervision, fostering a more efficient and engaging learning experience.

**Highlights:** 1-second homework grading, AI error analysis and solutions, 24/7 AI tutor for explanations, Dual-teacher video explanations, AI-powered lesson preview, Curriculum-aligned practice exercises, Oral calculation PK battles

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

**In-app purchases (24)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小猿口算VIP连续包月 | $3.99 | per month |
| VIP连续包月(首月优惠) | $3.99 | per month |
| VIP连续包月(续费优惠) | $3.99 | per month |
| VIP连续包月(首续优惠) | $3.99 | per month |
| VIP连续包月(首次优惠) | $3.99 | per month |
| 小猿口算VIP连续包月（首月优惠） | $3.99 | per month |
| 超级VIP连续包月 | $6.99 | per month |
| 小猿天天练连续包月首月优惠 | $6.99 | per month |
| 小猿天天练老版连续包月首页优惠 | $7.49 | per month |
| 小猿口算VIP连续包年(首续优惠) | $29.99 | per year |
| 小猿口算VIP连续包年(首年优惠) | $29.99 | per year |
| 小猿口算VIP连续包年（大促活动） | $34.99 | per year |
| 小猿口算1个月VIP | $3.99 | one-time |
| 小猿口算3个月VIP | $12.99 | one-time |
| 天天练（学练VIP）3个月 | $13.99 | one-time |
| 小猿口算5个月VIP | $14.99 | one-time |
| 活动特价12个月VIP | $22.99 | one-time |
| 618特价12个月VIP | $22.99 | one-time |
| 数学思维12个月会员 | $29.99 | one-time |
| 小猿口算12个月VIP | $34.99 | one-time |
| 双十二活动小猿天天练年卡+VIP年卡 | $39.99 | one-time |
| 小猿AI超级VIP12个月 | $49.99 | one-time |
| 小猿天天练12个月权益 | $59.99 | one-time |
| 小猿天天练12个月 | $79.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast algorithm learning
- 💡 Competitive gameplay
- 👍 Helpful for students
- 👍 Accurate answer checking

**What reviewers complain about**

- 🐛 Inaccurate answer detection
- 🔒 Restricted to domestic users
- 💰 Paywall for certain features
- 🐛 Compatibility issues with older devices
- 🐛 Occasional crashes and bugs

**Reported bugs**

- Incorrect answer detection
- Compatibility problems on some devices
- Frequent crashes and freezes
- Login issues for foreign users

**Requested features**

- Expand to international users
- Offer English language support
- Introduce identity verification for fair competition
- Improve accuracy of answer checking
- Add more practice content and difficulty levels


### 错题星

[App page](https://appshunter.io/ios/app/ai/id1602483511)

**Features:** macOS Compatibility

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月会员 | $3.99 | one-time |
| 12个月会员（优惠） | $26.99 | one-time |
| 1年会员（原价） | $29.99 | one-time |
| 2年会员（原价） | $39.99 | one-time |
| 12个月SVIP | $39.99 | one-time |
| 36个月会员（优惠） | $46.99 | one-time |
| 48个月SVIP | $59.99 | one-time |
| 72个月SVIP | $59.99 | one-time |
| 72个月VIP | $59.99 | one-time |
| 60个月SVIP | $59.99 | one-time |
| 96个月SVIP | $69.99 | one-time |
| 108个月SVIP | $69.99 | one-time |
| 36个月 | $109.99 | one-time |
| 终身SVIP（优惠） | $149.99 | one-time |
| 终身SVIP | $399.99 | one-time |


## Frequently asked questions

### Is 小猿AI free?

小猿AI is free to download, with in-app purchases available.

### Is 错题星 free?

错题星 is free to download, with in-app purchases available.

### Do 小猿AI or 错题星 have ads?

Neither 小猿AI nor 错题星 shows ads.

### Which is updated more often, 小猿AI or 错题星?

小猿AI ships an update every 5 days, and 错题星 every 3 weeks. Most recently, 小猿AI was updated on October 22, 2026 and 错题星 on October 13, 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.*