# 数理化 vs 口袋化学

The clearest difference is review sentiment: 口袋化学 at 93% against 数理化's 20%. 口袋化学 also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (13.0 vs 15.0). 数理化's advantage is in-app purchases (none vs 1). On price, ads and device support there is nothing between them.

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

数理化 ships an update every 4 months, 口袋化学 every 2 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 数理化 | 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 | 20.0% of reviews | **92.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 27 MB | 60 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [永生 刘](https://appshunter.io/developer/830484999) | [宇 刘](https://appshunter.io/developer/1551581698) |

## What reviewers say

### 数理化

[App page](https://appshunter.io/ios/app/id1212062256)

This app provides a comprehensive collection of formulas for junior and senior high school mathematics, physics, and chemistry. It aims to assist students in memorizing essential scientific and mathematical equations.

**Highlights:** Junior high math formulas, Junior high physics formulas, Junior high chemistry formulas, Senior high math formulas, Future inclusion of senior high physics and chemistry formulas

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

**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 数理化 free?

数理化 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 数理化 or 口袋化学 have ads?

Neither 数理化 nor 口袋化学 shows ads.

### Which is updated more often, 数理化 or 口袋化学?

数理化 ships an update every 4 months, and 口袋化学 every 2 weeks. Most recently, 数理化 was updated on October 20, 2026 and 口袋化学 on October 25, 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.*