# おうち生物：高校生物・生物基礎 vs ココタン

The clearest difference is ads: ココタン at none against おうち生物：高校生物・生物基礎's shown. ココタン also leads on update cadence (every 3 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

おうち生物：高校生物・生物基礎 ships an update monthly, ココタン every 3 days. Both last shipped on October 2, 2026.

## The numbers

| Metric | おうち生物：高校生物・生物基礎 | ココタン |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 days** |
| Size | 19 MB | 82 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TomatoAppLab](https://appshunter.io/developer/1676711750) | [KOKOMIRAI, K.K.](https://appshunter.io/developer/1663398018) |

## What reviewers say

### おうち生物：高校生物・生物基礎

[App page](https://appshunter.io/ios/app/id6468403741)

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

**In-app purchases:** none


### ココタン

[App page](https://appshunter.io/ios/app/id6642667955)

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

**In-app purchases:** none


## Frequently asked questions

### Is おうち生物：高校生物・生物基礎 free?

おうち生物：高校生物・生物基礎 is free to download, with no in-app purchases.

### Is ココタン free?

ココタン is free to download, with no in-app purchases.

### Do おうち生物：高校生物・生物基礎 or ココタン have ads?

おうち生物：高校生物・生物基礎 shows ads; ココタン does not.

### Which is updated more often, おうち生物：高校生物・生物基礎 or ココタン?

おうち生物：高校生物・生物基礎 ships an update monthly, and ココタン every 3 days. Most recently, おうち生物：高校生物・生物基礎 was updated on October 2, 2026 and ココタン on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*