# 科學Online vs 淡江化學人

The clearest difference is update cadence: 科學Online at every 6 weeks against 淡江化學人's every 3 months. 科學Online also leads on iOS requirement (7.1 vs 15.6). 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.

科學Online ships an update every 6 weeks, 淡江化學人 every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 科學Online | 淡江化學人 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Size | 34 MB | 24 MB |
| Requires iOS | **7.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mr.Crocodile](https://appshunter.io/developer/560102152) | [Wen-Chi Chou](https://appshunter.io/developer/1642680017) |

## What reviewers say

### 科學Online

[App page](https://appshunter.io/ios/app/online/id965057483)

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

**In-app purchases:** none


### 淡江化學人

[App page](https://appshunter.io/ios/app/id6756286502)

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

**In-app purchases:** none


## Frequently asked questions

### Is 科學Online free?

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

### Is 淡江化學人 free?

淡江化學人 is free to download, with no in-app purchases.

### Do 科學Online or 淡江化學人 have ads?

Neither 科學Online nor 淡江化學人 shows ads.

### Which is updated more often, 科學Online or 淡江化學人?

科學Online ships an update every 6 weeks, and 淡江化學人 every 3 months. Most recently, 科學Online was updated on November 1, 2026 and 淡江化學人 on October 30, 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.*