# Gravity One vs Rocket Protector

The clearest difference is in-app purchases: Gravity One at none against Rocket Protector's 3. Gravity One also leads on ads (none vs shown) and update cadence (every 9 months vs every 24 months). Rocket Protector's advantage is iOS requirement (13.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Rocket Protector sells 3 one-off in-app purchases. Gravity One asks for nothing beyond the download.

Gravity One ships an update every 9 months, Rocket Protector every 24 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Gravity One | Rocket Protector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/rocket-protector/id1410179786/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 months** | Every 24 months |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 42 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sami Salkosuo](https://appshunter.io/developer/820432278) | [ALEXEY KOZLOV](https://appshunter.io/developer/1393860478) |

## What reviewers say

### Gravity One

[App page](https://appshunter.io/ios/app/gravity-one/id820432275)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Gravity One free?

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

### Is Rocket Protector free?

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

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

Rocket Protector shows ads; Gravity One does not.

### Which is updated more often, Gravity One or Rocket Protector?

Gravity One ships an update every 9 months, and Rocket Protector every 24 months. Most recently, Gravity One was updated on October 26, 2026 and Rocket Protector on October 29, 2026.

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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.*