# PhySim Lab — Physics Simulator

> Physics simulator for classical mechanics experiments and celestial body motion. (iPhone/iPad app by 铖 邢.)

- Source: https://appshunter.io/ios/app/physim-lab/id1521781822 (this page in markdown: same URL + `.md`)
- Developer: [铖 邢](https://appshunter.io/developer/1497880786)
- Category: Education, Reference
- Price: $0.99
- Rating: 4.30/5 from 3 App Store ratings · 31 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 49 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2020-07-26
- Data updated: 2026-08-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/physim-lab/id1521781822/reviews.md

## What is PhySim Lab?

Following the great classical mechanics foundation - Newtonian kinematics and partly expanded physics simulator. You can restore and design various experiments of classical mechanics here, and eliminate the effects of ground friction and gravity, and you can also simulate the motion of celestial bodies (circular motion) and so on...

Generate texture materials from photos - You can use the pictures in the album as the texture materials of the objects. These materials will be drawn on the surface of the sphere. For example, you can use some planetary textures to make a beautiful star system, and then apply force to it to achieve circular or circular motion. You can use the knowledge you learned in school to calculate this force The specific size, and then verify your ideas.

Group editing - Long press or double tap the screen to call up the selection area, you can select a group of objects, and then treat the group as a system for overall editing. You can apply force, speed, displacement, etc. to a group of objects as a whole. You can also edit the amount of charge and mass of the group. These quantities will be equally distributed to each object in the group according to the original value as a weight.

Follow and Watch - For the selected single object, you can follow or watch it. To follow is to place your perspective on the object and follow the movement of the object. Remember the "retrograde" phenomenon of Mars? The reason for this phenomenon is that the selected reference frame is different. To follow an object is to place the zero point of the reference frame of the observer on the object. You may see more "retrograde" phenomena. Watch is to record an object to the watching view. You can easily switch and follow the object among the watched objects.

More - PhySim realizes gravitation and magnetic force, which is actually a force from the perspective of the field. On this basis, physics gave birth to "centripetal force" and other effect forces, which can explain most of the physical phenomena we can currently observe, and we can also discover some unusual phenomena. For example, you can design two generators, one positive charge and one negative charge, and place several in the scene at the same time. Different from the results of the school experiment, you will find that it will always "jitter" because it is different from the laboratory. Without considering friction and ground gravity, this "jitter" system has no energy loss.

## Key features

- 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

## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/physim-lab/id1521781822/reviews.md

### 1/5 — 进不去

*2026-08-08*

选择模板后就进不去

### 3/5 — 为什么会炸开？

*2026-07-25*

就是如果把很多球体弄到一起的话，他们会形成更大的球体，但是有时候会不稳定，会直接炸开，为什么会这样子？

### 5/5 — 很好用，但是有小bug

*2026-01-23*

如果一个物体在高速移动，那么暂停后基本选中不了

### 5/5 — 也改个小问题吧

*2025-07-27*

我建议你把那些贴图给搞出来。我也玩过，但是放多了粒子就会卡出去，我就特别烦。如何搞出中心体来的话粒子都钻在上面了，我只希望像太阳系那种类似的轨道。

### 4/5 — 放多了有点卡

*2025-07-03*

第一个报的时候我想多放几个结果卡的退也不能退，移动也不能移动，希望开发者做个限额，不然放多了，真的很卡

### 5/5 — 推荐

*2025-05-20*

非常真实，适合做物理探究，一看就是下了功夫的

### 5/5 — 无敌了

*2025-04-25*

在我看见那么多的历史在一个场景下3D运作的时候，我真的感觉这款游戏无敌了

### 5/5 — Nice physics program!!

*2024-12-03*

Even though this software is not very user-friendly (for new players) and can be a bit buggy sometimes, it very nicely demonstrates how gravity works. It doesn’t show any complex mathematical and physical equations, but you can spawn different types of balls that use gravity to simulate space objects/atoms.

### 5/5 — This is great

*2024-09-15*

I simulated big bang and I did it and I’m  8 and please make update that tells you wahat everything means.(please listen developers).

### 5/5 — 好

*2024-05-11*

模拟效果特别好

## Frequently asked questions about PhySim Lab

### What is PhySim Lab?

PhySim Lab is a physics simulator that allows users to design and conduct experiments based on classical mechanics. It supports simulations of Newtonian kinematics, celestial body motion, and various forces like gravitation and magnetic force.

### How does PhySim Lab simulate physics?

The app simulates physics by allowing users to set up objects, apply forces, and observe their motion. It can eliminate effects like ground friction and gravity, enabling precise observation of fundamental principles and the discovery of unusual phenomena.

### Can I use my own images in PhySim Lab?

Yes, you can generate texture materials from photos in your album. These images can be applied to spheres to create custom objects, such as planetary textures for simulating star systems.

### How does group editing work in PhySim Lab?

Group editing allows you to select multiple objects and treat them as a single system. You can apply forces, speed, displacement, charge, and mass to the entire group, with these properties distributed among the objects.

### What is the 'Follow and Watch' feature in PhySim Lab?

The 'Follow' feature places your perspective on a selected object, tracking its movement. 'Watch' records an object to a viewing list, allowing you to easily switch between observing different objects and understanding phenomena like retrograde motion.

### What is the price of PhySim Lab?

PhySim Lab is a paid application priced at $0.99. This one-time purchase grants you access to all its features.

### What devices does PhySim Lab support?

PhySim Lab is available for iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is PhySim Lab updated?

PhySim Lab was last updated on October 23, 2020, to version 1.5. The initial release date was July 26, 2020.

## Version history (last 5 releases)

### 1.5 — 2020-10-23

1. Story - walk you into physics.
2. Optimize the experience-When casting an object, if the target position of the object is blocked, put the new object to the front.
3. Bugs Fixed.

### 1.4 — 2020-08-09

Fixed the problem of inaccurate calculation of normal object motion.
Add the new function from template-you can quickly create an archive based on the existing archive.
Adjust part of the operation logic.

### 1.2 — 2020-08-03

Fixed the bug that the tip box displayed incorrectly on some devices.
Objects near the Watching object will not be automatically removed.

### 1.1 — 2020-07-31

Bugs fixed.
Add object copy feature.

### 1.0 — 2020-07-26

No release notes.

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## More apps by 铖 邢

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- [Python Code Develop](https://appshunter.io/ios/app/python-code-develop/id6742342498)

All apps by 铖 邢: https://appshunter.io/developer/1497880786

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*
