# Fast Math Blitz vs Gravity

The clearest difference is in-app purchases: Fast Math Blitz at none against Gravity's 1. Fast Math Blitz also leads on iOS requirement (12.5 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Gravity sells 1 one-off in-app purchase. Fast Math Blitz asks for nothing beyond the download.

## The numbers

| Metric | Fast Math Blitz | Gravity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 2 months |
| Size | 82 MB | 116 MB |
| Requires iOS | **12.5** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AMERICAN RECOVERY AGENCY LLC](https://appshunter.io/developer/1805337613) | [Quang Thang To](https://appshunter.io/developer/1817626562) |

## What reviewers say

### Fast Math Blitz

[App page](https://appshunter.io/ios/app/fast-math-blitz/id6743958220)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gravity

[App page](https://appshunter.io/ios/app/gravity-planets-in-universe/id6746643773)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Creative Mode | $2.99 | one-time |


## Frequently asked questions

### Is Fast Math Blitz free?

Fast Math Blitz is free to download, with no in-app purchases.

### Is Gravity free?

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

### Do Fast Math Blitz or Gravity have ads?

Both Fast Math Blitz and Gravity show 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.*