# 鬼計算 vs 高校生物 一問一答｜生物マスター

The clearest difference is update cadence: 高校生物 一問一答｜生物マスター at fortnightly against 鬼計算's every 5 months. 鬼計算's advantage is iOS requirement (15.2 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

鬼計算 ships an update every 5 months, 高校生物 一問一答｜生物マスター fortnightly. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 鬼計算 | 高校生物 一問一答｜生物マスター |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 12 MB | 12 MB |
| Requires iOS | **15.2** | 26.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [masaaki genno](https://appshunter.io/developer/1611455396) | [Hirokazu Kurokawa](https://appshunter.io/developer/463196366) |

## What reviewers say

### 鬼計算

[App page](https://appshunter.io/ios/app/hp/id1613670633)

**Features:** macOS Compatibility

**In-app purchases:** none


### 高校生物 一問一答｜生物マスター

[App page](https://appshunter.io/ios/app/id6807654856)

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

**In-app purchases:** none


## Frequently asked questions

### Is 鬼計算 free?

鬼計算 is free to download, with no in-app purchases.

### Is 高校生物 一問一答｜生物マスター free?

高校生物 一問一答｜生物マスター is free to download, with no in-app purchases.

### Do 鬼計算 or 高校生物 一問一答｜生物マスター have ads?

Both 鬼計算 and 高校生物 一問一答｜生物マスター show ads.

### Which is updated more often, 鬼計算 or 高校生物 一問一答｜生物マスター?

鬼計算 ships an update every 5 months, and 高校生物 一問一答｜生物マスター fortnightly. Most recently, 鬼計算 was updated on October 8, 2026 and 高校生物 一問一答｜生物マスター on October 9, 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.*