# Structural Formulas Study vs しゃかいのべんきょう

The clearest difference is in-app purchases: Structural Formulas Study at none against しゃかいのべんきょう's 1. Structural Formulas Study also leads on ads (none vs shown). しゃかいのべんきょう's advantage is update cadence (every 8 days vs every 5 weeks) and iOS requirement (16.0 vs 18.4). On price and device support there is nothing between them.

Both are free to download. しゃかいのべんきょう sells 1 one-off in-app purchase. Structural Formulas Study asks for nothing beyond the download.

Structural Formulas Study ships an update every 5 weeks, しゃかいのべんきょう every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Structural Formulas Study | しゃかいのべんきょう |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/structural-formulas-study/id6752260162/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 5 MB | 8 MB |
| Requires iOS | 18.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jun Yamabe](https://appshunter.io/developer/1732682049) | [Kinicy](https://appshunter.io/developer/366096366) |

## What reviewers say

### Structural Formulas Study

[App page](https://appshunter.io/ios/app/structural-formulas-study/id6752260162)

Explore and study over 100 molecular structures with detailed properties and clear diagrams. This app offers quick search and filtering for efficient exam preparation and daily learning, with offline access available.

**Highlights:** 100+ molecular structures, Detailed structural formulas, Essential chemical properties, Quick search and filters, Offline access, Exam preparation tool

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

**In-app purchases:** none


### しゃかいのべんきょう

[App page](https://appshunter.io/ios/app/id6785793273)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro（すべての形式） | $2.99 | one-time |


## Frequently asked questions

### Is Structural Formulas Study free?

Structural Formulas Study is free to download, with no in-app purchases.

### Is しゃかいのべんきょう free?

しゃかいのべんきょう is free to download, with in-app purchases available.

### Do Structural Formulas Study or しゃかいのべんきょう have ads?

しゃかいのべんきょう shows ads; Structural Formulas Study does not.

### Which is updated more often, Structural Formulas Study or しゃかいのべんきょう?

Structural Formulas Study ships an update every 5 weeks, and しゃかいのべんきょう every 8 days. Most recently, Structural Formulas Study was updated on October 24, 2026 and しゃかいのべんきょう 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.*