# アミノ酸の分子量計算AminoCalc vs 情報の王様

The clearest difference is in-app purchases: アミノ酸の分子量計算AminoCalc at none against 情報の王様's 3. アミノ酸の分子量計算AminoCalc also leads on ads (none vs shown) and update cadence (every 8 days vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 情報の王様 sells 3 in-app purchases, starting at $1.99 per month. アミノ酸の分子量計算AminoCalc asks for nothing beyond the download.

アミノ酸の分子量計算AminoCalc ships an update every 8 days, 情報の王様 every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | アミノ酸の分子量計算AminoCalc | 情報の王様 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 138 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hideki Touhara](https://appshunter.io/developer/1268738829) | [HANAUTA INC.](https://appshunter.io/developer/492009717) |

## What reviewers say

### アミノ酸の分子量計算AminoCalc

[App page](https://appshunter.io/ios/app/aminocalc/id1524110481)

This app calculates the molecular weight of amino acids using 3-letter, 1-letter, or codon input. It also includes a quiz to test your knowledge of amino acids, with new quiz content added based on organic chemistry structures.

**Highlights:** Calculate molecular weight of amino acids, Input via 3-letter, 1-letter, or codon, Amino acid knowledge quiz, Organic chemistry structure-based quiz content, Convenient for research on iPhone/iPad

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

**In-app purchases:** none


### 情報の王様

[App page](https://appshunter.io/ios/app/1/id6467608924)

Master high school information studies with this quiz-style app. It offers over 1000 questions in Q&A and multiple-choice formats, perfect for quick study sessions, exam preparation, and reinforcing key concepts. Enjoy a game-like experience with rewards for clearing stages.

**Highlights:** Over 1000 Q&A and multiple-choice questions, Short play sessions for flexible study, Covers high school and university exam material, Game-like progression with stage clearing, Gift rewards for completing quests, Efficient memorization of key points

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 特訓プラン | $1.99 | per month |
| 特訓プラン | $11.99 | per 6 months |
| 特訓プラン | $19.99 | per year |


## Frequently asked questions

### Is アミノ酸の分子量計算AminoCalc free?

アミノ酸の分子量計算AminoCalc is free to download, with no in-app purchases.

### Is 情報の王様 free?

情報の王様 is free to download, with in-app purchases available.

### Do アミノ酸の分子量計算AminoCalc or 情報の王様 have ads?

情報の王様 shows ads; アミノ酸の分子量計算AminoCalc does not.

### Which is updated more often, アミノ酸の分子量計算AminoCalc or 情報の王様?

アミノ酸の分子量計算AminoCalc ships an update every 8 days, and 情報の王様 every 6 weeks. Most recently, アミノ酸の分子量計算AminoCalc was updated on November 3, 2026 and 情報の王様 on November 3, 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.*