# 3DPhyS vs 口袋化学

The clearest difference is in-app purchases: 3DPhyS at none against 口袋化学's 1. 口袋化学's advantage is ads (none vs shown) and review sentiment (93% vs 80%). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 口袋化学 sells 1 one-off in-app purchase. 3DPhyS asks for nothing beyond the download.

3DPhyS ships an update fortnightly, 口袋化学 every 2 weeks. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 3DPhyS | 口袋化学 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/and/id6504169379/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 80.0% of reviews | **92.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 176 MB | 60 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sota Takasugi](https://appshunter.io/developer/1713502017) | [宇 刘](https://appshunter.io/developer/1551581698) |

## What reviewers say

### 3DPhyS

[App page](https://appshunter.io/ios/app/3dphys-physics-simulator/id6470351815)

Explore fundamental physics concepts through interactive simulations. Adjust parameters like initial velocity and bounce coefficient to understand phenomena like free fall, projectile motion, and circular motion. This app supports learning in multiple languages.

**Highlights:** Interactive physics simulations, Adjustable experiment parameters, Multiple physics experiment modules, Multilingual interface, Free to download and use

**Features:** macOS Compatibility

**In-app purchases:** none


### 口袋化学

[App page](https://appshunter.io/ios/app/and/id6504169379)

This app is a comprehensive chemistry learning and reference tool. It offers a detailed periodic table, a vast database of inorganic and organic substances, and a searchable collection of over 1300 chemical reaction equations. It also includes resources for common gas preparation, metal activity, solubility, formulas, and molar mass calculation.

**Highlights:** Detailed periodic table with element details, Database of over 400 inorganic and organic substances, Searchable library of 1300+ chemical reaction equations, Categorized reaction types, Common gas preparation methods, Metal activity series, Solubility tables, Molar mass calculator

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久会员 | $2.99 | one-time |


## Frequently asked questions

### Is 3DPhyS free?

3DPhyS is free to download, with no in-app purchases.

### Is 口袋化学 free?

口袋化学 is free to download, with in-app purchases available.

### Do 3DPhyS or 口袋化学 have ads?

3DPhyS shows ads; 口袋化学 does not.

### Which is updated more often, 3DPhyS or 口袋化学?

3DPhyS ships an update fortnightly, and 口袋化学 every 2 weeks. Most recently, 3DPhyS was updated on October 4, 2026 and 口袋化学 on October 10, 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.*