# 宇宙クイズ vs CosmicObserver

The clearest difference is in-app purchases: 宇宙クイズ at none against CosmicObserver's 1. 宇宙クイズ also leads on iOS requirement (16.6 vs 18.0). CosmicObserver's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. CosmicObserver sells 1 one-off in-app purchase. 宇宙クイズ asks for nothing beyond the download.

## The numbers

| Metric | 宇宙クイズ | CosmicObserver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 5 weeks |
| Size | 10 MB | 188 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TOMOHIRO WADA](https://appshunter.io/developer/1872900465) | [Yuichi Okuno](https://appshunter.io/developer/1803911141) |

## What reviewers say

### 宇宙クイズ

[App page](https://appshunter.io/ios/app/id6760960634)

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

**In-app purchases:** none


### CosmicObserver

[App page](https://appshunter.io/ios/app/cosmicobserver/id6787430312)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosmic Pass | $4.99 | one-time |


## Frequently asked questions

### Is 宇宙クイズ free?

宇宙クイズ is free to download, with no in-app purchases.

### Is CosmicObserver free?

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

### Do 宇宙クイズ or CosmicObserver have ads?

宇宙クイズ shows ads; CosmicObserver does not.

---

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