# Curiosity vs Claustro

The clearest difference is iOS requirement: Claustro at 15.0 against Curiosity's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Curiosity ships an update weekly, Claustro every 5 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Curiosity | Claustro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 33 MB | 21 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Javier Cabo Roca](https://appshunter.io/developer/645700643) | [Francisco Porcel](https://appshunter.io/developer/6811666191) |

## What reviewers say

### Curiosity

[App page](https://appshunter.io/ios/app/curiosity-space-and-science/id6756880503)

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

**In-app purchases:** none


### Claustro

[App page](https://appshunter.io/ios/app/claustro/id6811666189)

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

**In-app purchases:** none


## Frequently asked questions

### Is Curiosity free?

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

### Is Claustro free?

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

### Do Curiosity or Claustro have ads?

Neither Curiosity nor Claustro shows ads.

### Which is updated more often, Curiosity or Claustro?

Curiosity ships an update weekly, and Claustro every 5 days. Most recently, Curiosity was updated on October 25, 2026 and Claustro 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.*