# Nuclides vs KAGAKU

The clearest difference is in-app purchases: KAGAKU at none against Nuclides's 2. Nuclides's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Nuclides sells 2 in-app purchases, starting at $0.99 per month. KAGAKU asks for nothing beyond the download.

Nuclides ships an update every 2 weeks, KAGAKU every 3 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Nuclides | KAGAKU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 128 MB | 29 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [建锋 宋](https://appshunter.io/developer/1098794568) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### Nuclides

[App page](https://appshunter.io/ios/app/nuclides/id1098794569)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription · Monthly | $0.99 | per month |
| Premium Subscription · Yearly | $9.99 | per year |


### KAGAKU

[App page](https://appshunter.io/ios/app/kagaku/id6763080354)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nuclides free?

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

### Is KAGAKU free?

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

### Do Nuclides or KAGAKU have ads?

KAGAKU shows ads; Nuclides does not.

### Which is updated more often, Nuclides or KAGAKU?

Nuclides ships an update every 2 weeks, and KAGAKU every 3 months. Most recently, Nuclides was updated on October 26, 2026 and KAGAKU on October 29, 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.*