# Zero Gravity App vs Grind Athens

The clearest difference is iOS requirement: Zero Gravity App at 12.1 against Grind Athens's 16. 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.

## The numbers

| Metric | Zero Gravity App | Grind Athens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Size | 9 MB | 21 MB |
| Requires iOS | **12.1** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kostas Kousinovalis](https://appshunter.io/developer/762128160) | [Gym Booking LP](https://appshunter.io/developer/1722435184) |

## What reviewers say

### Zero Gravity App

[App page](https://appshunter.io/ios/app/zero-gravity-app/id1489242961)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grind Athens

[App page](https://appshunter.io/ios/app/grind-athens/id6756241907)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zero Gravity App free?

Zero Gravity App is free to download, with no in-app purchases.

### Is Grind Athens free?

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

### Do Zero Gravity App or Grind Athens have ads?

Neither Zero Gravity App nor Grind Athens 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.*