# Challenge Go vs ISUD Zero

The clearest difference is price: Challenge Go at Free against ISUD Zero's $0.99. Challenge Go also leads on iOS requirement (10 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Challenge Go is free to download; ISUD Zero costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Challenge Go | ISUD Zero |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/challenge-go/id6739545195/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free | — |
| Size | 188 MB | 119 MB |
| Requires iOS | **10** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Connor Hawke](https://appshunter.io/developer/1586189635) | [Suwitcha Sugthana](https://appshunter.io/developer/372726303) |

## What reviewers say

### Challenge Go

[App page](https://appshunter.io/ios/app/challenge-go/id6739545195)

Navigate diverse environments, from forests to space, by fighting through levels to reach the portal. Utilize items to overcome obstacles and progress through 100 challenging stages.

**Highlights:** Tile-based action/puzzle gameplay, Diverse environments (forests, space, ruins), Item usage for progression, 100 challenging levels, Portal-based level progression

**Features:** Vision Pro support

**In-app purchases:** none


### ISUD Zero

[App page](https://appshunter.io/ios/app/isud-zero/id6765926399)

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

**In-app purchases:** none


## Frequently asked questions

### Is Challenge Go free?

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

### Is ISUD Zero free?

ISUD Zero costs $0.99, with no in-app purchases.

### Do Challenge Go or ISUD Zero have ads?

Neither Challenge Go nor ISUD Zero shows ads.

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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.*