# Rocket Protector vs Gravity Derby

Rocket Protector and Gravity Derby 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. Rocket Protector sells 3 one-off in-app purchases and Gravity Derby sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Rocket Protector | Gravity Derby |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/rocket-protector/id1410179786/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 24 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 774 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALEXEY KOZLOV](https://appshunter.io/developer/1393860478) | [云飞 徐](https://appshunter.io/developer/1849215838) |

## What reviewers say

### Rocket Protector

[App page](https://appshunter.io/ios/app/rocket-protector/id1410179786)

Test your reflexes and precision by defending a planet from incoming asteroids. Launch rockets to destroy threats and upgrade your arsenal to survive longer. The goal is to see how long you can protect your world.

**Highlights:** Planet rotation via swipe, Rocket launching by tap, Asteroid destruction, Missile upgrades, Reaction and accuracy testing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| 100 mineral | $0.99 | one-time |
| 500 mineral | $1.99 | one-time |


### Gravity Derby

[App page](https://appshunter.io/ios/app/gravity-derby/id6755297391)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Skin Coins | $0.99 | one-time |


## Frequently asked questions

### Is Rocket Protector free?

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

### Is Gravity Derby free?

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

### Do Rocket Protector or Gravity Derby have ads?

Both Rocket Protector and Gravity Derby 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.*