# 高校 生物 一問一答＆演習問題 vs ClassLens

The clearest difference is in-app purchases: ClassLens at none against 高校 生物 一問一答＆演習問題's 1. ClassLens also leads on update cadence (every 3 weeks vs every 12 months). On price, ads, device support and iOS requirement 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. ClassLens asks for nothing beyond the download.

高校 生物 一問一答＆演習問題 ships an update every 12 months, ClassLens every 3 weeks. The most recent releases landed on September 9, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | 高校 生物 一問一答＆演習問題 | ClassLens |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 3 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [StudySwitch, Inc.](https://appshunter.io/developer/1368900403) | [Atsuhiro Hasebe](https://appshunter.io/developer/1766410126) |

## 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 |


### ClassLens

[App page](https://appshunter.io/ios/app/classlens/id6670457269)

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 ClassLens free?

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

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

Both 高校 生物 一問一答＆演習問題 and ClassLens show ads.

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

高校 生物 一問一答＆演習問題 ships an update every 12 months, and ClassLens every 3 weeks. Most recently, 高校 生物 一問一答＆演習問題 was updated on September 9, 2026 and ClassLens on May 16, 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.*