# Primal Knockout vs Gravity Frontline

Primal Knockout and Gravity Frontline are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Primal Knockout | Gravity Frontline |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Size | 305 MB | 109 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Yorf Studio](https://appshunter.io/developer/1521693654) | [FreeS Games](https://appshunter.io/developer/435365746) |

## What reviewers say

### Primal Knockout

[App page](https://appshunter.io/ios/app/primal-knockout/id6753673391)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gravity Frontline

[App page](https://appshunter.io/ios/app/gravity-frontline/id6754205461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Primal Knockout free?

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

### Is Gravity Frontline free?

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

### Do Primal Knockout or Gravity Frontline have ads?

Both Primal Knockout and Gravity Frontline 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.*