# NB实验室 vs PhySim Lab

The clearest difference is price: NB实验室 at Free against PhySim Lab's $0.99. NB实验室 also leads on rating (4.8 vs 4.3) and ratings volume (83 vs 3). PhySim Lab's advantage is in-app purchases (none vs 41) and update cadence (every 5 days vs fortnightly). On review sentiment, ads, device support and iOS requirement there is nothing between them.

NB实验室 is free to download; PhySim Lab costs $0.99 up front. NB实验室 sells 41 in-app purchases, starting at $4.99 per month. PhySim Lab asks for nothing beyond the download.

NB实验室 holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: NB实验室 has 83 ratings behind it against 3, 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 65% of PhySim Lab's.

NB实验室 ships an update fortnightly, PhySim Lab every 5 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | NB实验室 | PhySim Lab |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (83 ratings)](https://appshunter.io/ios/app/nb/id1265400377/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/physim-lab/id1521781822/reviews) |
| Number of ratings | **83** | 3 |
| Positive reviews | **72.2% of reviews** | 64.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 81 MB | 49 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeiJing LeBu Educational Technology Co., Ltd.](https://appshunter.io/developer/943806906) | [铖 邢](https://appshunter.io/developer/1497880786) |

## 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 |


### PhySim Lab

[App page](https://appshunter.io/ios/app/physim-lab/id1521781822)

Explore classical mechanics through interactive simulations. Design and test physics experiments, simulate celestial motion, and generate custom textures for objects. Group editing and object tracking enhance the learning experience.

**Highlights:** Classical mechanics simulations, Celestial body motion simulation, Custom texture generation from photos, Group editing of objects, Object following and watching modes, Gravitation and magnetic force simulation

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

**In-app purchases:** none


## Frequently asked questions

### Is NB实验室 free?

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

### Is PhySim Lab free?

PhySim Lab costs $0.99, with no in-app purchases.

### Which has better reviews, NB实验室 or PhySim Lab?

NB实验室 is rated higher. NB实验室 averages 4.8 out of 5 from 83 ratings, while PhySim Lab averages 4.3 from 3 ratings.

### Do NB实验室 or PhySim Lab have ads?

Neither NB实验室 nor PhySim Lab shows ads.

### Which is updated more often, NB实验室 or PhySim Lab?

NB实验室 ships an update fortnightly, and PhySim Lab every 5 days. Most recently, NB实验室 was updated on October 11, 2026 and PhySim Lab on October 8, 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.*