# NB实验室 vs 小猿AI

The clearest difference is ratings volume: 小猿AI at 4.3K against NB实验室's 87. 小猿AI also leads on update cadence (every 5 days vs fortnightly). NB实验室's advantage is rating (4.8 vs 4.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. NB实验室 sells 41 in-app purchases, starting at $4.99 per month and 小猿AI sells 24 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

NB实验室 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: 小猿AI has 4.3K ratings behind it against 87, so its average is the more settled of the two. Written reviews point the same way: 72% of NB实验室's written reviews are positive against 67% of 小猿AI's.

NB实验室 ships an update fortnightly, 小猿AI every 5 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | NB实验室 | 小猿AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (87 ratings)](https://appshunter.io/ios/app/nb/id1265400377/reviews)** | [4.6 (4.3K ratings)](https://appshunter.io/ios/app/ai/id1325419855/reviews) |
| Number of ratings | 87 | **4.3K** |
| Positive reviews | **72.3% of reviews** | 67.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 81 MB | 241 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeiJing LeBu Educational Technology Co., Ltd.](https://appshunter.io/developer/943806906) | [Beijing Yuanli Science and Technology Co., Ltd.](https://appshunter.io/developer/551536747) |

## What reviewers say

### NB实验室

[App page](https://appshunter.io/ios/app/nb/id1265400377)

This app offers over 2000 synchronized textbook experiments and 1000 DIY experiment kits for interactive learning. It includes simulated experiment testing, AI-powered guidance, and expert-led video lessons to enhance science education and problem-solving skills.

**Highlights:** 2000+ textbook synchronized experiments, 1000+ DIY experiment kits, Interactive experiment simulation, AI intelligent learning companion, Expert-created knowledge videos, Chapter and knowledge point search

**In-app purchases (41)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 初中物理连续包月(首月免费) | $4.99 | per month |
| 初中化学连续包月(首月免费) | $4.99 | per month |
| 初中生物连续包月(首月免费) | $4.99 | per month |
| 高中物理连续包月(首月免费) | $4.99 | per month |
| 高中化学连续包月(首月免费) | $4.99 | per month |
| 高中生物连续包月(首月免费) | $4.99 | per month |
| 小初套餐连续包月(首月免费) | $14.99 | per month |
| 高中生物连续包半年 | $22.99 | per 6 months |
| 小初套餐连续包两月 | $29.99 | per 2 months |
| 高中化学连续包年 | $39.99 | per year |
| 初中化学连续包年(前 3 天免费) | $39.99 | per year |
| 高中生物连续包年(前 3 天免费) | $39.99 | per year |
| 小初套餐连续包季(前 3 天免费) | $39.99 | per 3 months |
| 小初套餐连续包季 | $39.99 | per 3 months |
| 初中化学1个月会员 | $4.99 | one-time |
| 初中生物1个月会员 | $4.99 | one-time |
| 高中化学1个月会员 | $4.99 | one-time |
| 初中物理1个月会员 | $4.99 | one-time |
| 高中生物1个月会员 | $4.99 | one-time |
| 高中物理1个月会员 | $4.99 | one-time |
| 初中物理1年卡会员 | $39.99 | one-time |
| 高中化学1年卡会员 | $39.99 | one-time |
| 268N币 | $39.99 | one-time |
| 259N币 | $39.99 | one-time |
| 318N币 | $49.99 | one-time |
| 378N币 | $49.99 | one-time |
| 358N币 | $49.99 | one-time |
| 379N币 | $49.99 | one-time |
| 初中物理3年卡会员 | $69.99 | one-time |
| 初中生物3年卡会员 | $69.99 | one-time |
| 小学科学3年卡会员 | $69.99 | one-time |
| 初中化学3年卡会员 | $69.99 | one-time |
| 高中化学3年卡会员 | $69.99 | one-time |
| 高中生物3年卡会员 | $69.99 | one-time |
| 518N币 | $69.99 | one-time |
| 468N币 | $69.99 | one-time |
| 小初套餐年卡 | $99.99 | one-time |
| 758N币 | $99.99 | one-time |
| 777N币 | $99.99 | one-time |
| 小初三年卡套餐 | $199.99 | one-time |
| 初高中套餐6年卡 | $299.99 | one-time |


### 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


## Frequently asked questions

### Is NB实验室 free?

NB实验室 is free to download, with in-app purchases available.

### Is 小猿AI free?

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

### Which has better reviews, NB实验室 or 小猿AI?

NB实验室 is rated higher. NB实验室 averages 4.8 out of 5 from 87 ratings, while 小猿AI averages 4.6 from 4.3K ratings.

### Do NB实验室 or 小猿AI have ads?

Neither NB实验室 nor 小猿AI shows ads.

### Which is updated more often, NB实验室 or 小猿AI?

NB实验室 ships an update fortnightly, and 小猿AI every 5 days. Most recently, NB实验室 was updated on October 15, 2026 and 小猿AI on October 17, 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.*