# 無機化学 vs サクッと化学(共通テスト対策)1問1答【サクトレ】

The clearest difference is update cadence: サクッと化学(共通テスト対策)1問1答【サクトレ】 at weekly against 無機化学's every 2 months. サクッと化学(共通テスト対策)1問1答【サクトレ】 also leads on iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 無機化学 sells 3 in-app purchases, starting at $1.99 per month and サクッと化学(共通テスト対策)1問1答【サクトレ】 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

無機化学 ships an update every 2 months, サクッと化学(共通テスト対策)1問1答【サクトレ】 weekly. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 無機化学 | サクッと化学(共通テスト対策)1問1答【サクトレ】 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 86.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Freemium | — |
| Size | 8 MB | 56 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Akihiko Kitamura](https://appshunter.io/developer/1585792497) | [DECRYPTION, CO., LTD.](https://appshunter.io/developer/1778172529) |

## What reviewers say

### 無機化学

[App page](https://appshunter.io/ios/app/id6737172145)

This app helps high school students memorize inorganic chemistry concepts. It covers reaction principles, metallic elements, and non-metallic elements, utilizing a red-sheet overlay for easy output and review. User feedback is actively incorporated for improvements.

**Highlights:** Red sheet overlay for output practice, Comprehensive inorganic chemistry content, Covers reaction principles, Covers metallic elements, Covers non-metallic elements, User feedback integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - 1ヶ月 | $1.99 | per month |
| Pro - 6ヶ月 | $11.99 | per 6 months |
| Pro - 12ヶ月 | $19.99 | per year |


### サクッと化学(共通テスト対策)1問1答【サクトレ】

[App page](https://appshunter.io/ios/app/11/id6744935652)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問題アンロック | $0.49 | one-time |


## Frequently asked questions

### Is 無機化学 free?

無機化学 is free to download, with in-app purchases available.

### Is サクッと化学(共通テスト対策)1問1答【サクトレ】 free?

サクッと化学(共通テスト対策)1問1答【サクトレ】 is free to download, with in-app purchases available.

### Do 無機化学 or サクッと化学(共通テスト対策)1問1答【サクトレ】 have ads?

Neither 無機化学 nor サクッと化学(共通テスト対策)1問1答【サクトレ】 shows ads.

### Which is updated more often, 無機化学 or サクッと化学(共通テスト対策)1問1答【サクトレ】?

無機化学 ships an update every 2 months, and サクッと化学(共通テスト対策)1問1答【サクトレ】 weekly. Most recently, 無機化学 was updated on October 23, 2026 and サクッと化学(共通テスト対策)1問1答【サクトレ】 on October 14, 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.*