# 高校 生物 一問一答＆演習問題 vs RedSheetCamera

The clearest difference is ads: RedSheetCamera at none against 高校 生物 一問一答＆演習問題's shown. 高校 生物 一問一答＆演習問題's advantage is review sentiment (67% vs 43%). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. 高校 生物 一問一答＆演習問題 sells 1 in-app purchase, starting at $1.99 per month and RedSheetCamera sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

高校 生物 一問一答＆演習問題 ships an update every 12 months, RedSheetCamera every 15 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 高校 生物 一問一答＆演習問題 | RedSheetCamera |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **66.7% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 15 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 52 MB | 9 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [StudySwitch, Inc.](https://appshunter.io/developer/1368900403) | [taishin miyamoto](https://appshunter.io/developer/1570395608) |

## What reviewers say

### 高校 生物 一問一答＆演習問題

[App page](https://appshunter.io/ios/app/id6449931846)

Master essential high school biology concepts with this app. It offers question-and-answer drills and practice problems categorized by topic, perfect for regular tests and university entrance exams.

**Highlights:** Covers essential high school biology basics, Q&A drills by topic, Practice problems by topic, Ideal for regular tests, Supports university entrance exam prep, Part of the popular 'Hanpuku' series

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 本気で勉強プラン | $1.99 | per month |


### RedSheetCamera

[App page](https://appshunter.io/ios/app/redsheetcamera/id6451382182)

This study support app uses your camera to hide key information in your notes or textbooks. It then facilitates active recall practice to strengthen retention for exams, language learning, and certifications.

**Highlights:** Camera-based review of learning material, Adjustable information visibility, Uninterrupted study flow with simple controls, Supports consistent daily review, Active recall practice

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RedSheetCamera - Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is 高校 生物 一問一答＆演習問題 free?

高校 生物 一問一答＆演習問題 is free to download, with in-app purchases available.

### Is RedSheetCamera free?

RedSheetCamera is free to download, with in-app purchases available.

### Do 高校 生物 一問一答＆演習問題 or RedSheetCamera have ads?

高校 生物 一問一答＆演習問題 shows ads; RedSheetCamera does not.

### Which is updated more often, 高校 生物 一問一答＆演習問題 or RedSheetCamera?

高校 生物 一問一答＆演習問題 ships an update every 12 months, and RedSheetCamera every 15 months. Most recently, 高校 生物 一問一答＆演習問題 was updated on September 9, 2026 and RedSheetCamera on September 10, 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.*