# Hello Rocket vs Gravnoid

The clearest difference is rating: Gravnoid at 5.0 against Hello Rocket's 4.1. Gravnoid also leads on in-app purchases (none vs 1) and review sentiment (100% vs 83%). Hello Rocket's advantage is update cadence (every 10 days vs every 6 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Hello Rocket sells 1 one-off in-app purchase. Gravnoid asks for nothing beyond the download.

Gravnoid holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 83% of Hello Rocket's written reviews are positive against 100% of Gravnoid's.

Hello Rocket ships an update every 10 days, Gravnoid every 6 weeks. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Hello Rocket | Gravnoid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/hello-rocket/id412779007/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/gravnoid/id6447106539/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 56 MB | 72 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SoftwareByEugene](https://appshunter.io/developer/317013590) | [Schaff Games, LLC](https://appshunter.io/developer/1680348606) |

## What reviewers say

### Hello Rocket

[App page](https://appshunter.io/ios/app/hello-rocket/id412779007)

Engage in a physics-based demolition game with 72 levels of challenging gameplay. Knock over towers, detonate bombs, and defeat cute enemies using hilarious physics. Compete for high scores on global leaderboards.

**Highlights:** 72 levels of physics-based challenges, Topple towers and explode bombs, Defeat cute bad guys, Game Center leaderboards, Hours of addictive gameplay

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Levels | $4.99 | one-time |


### Gravnoid

[App page](https://appshunter.io/ios/app/gravnoid/id6447106539)

Navigate the cosmos in zero gravity, dodging celestial hazards like black holes and meteor showers. Master intuitive thruster controls to survive an ever-changing sequence of challenges in this endless space adventure.

**Highlights:** Zero gravity navigation, Intuitive thruster controls, Procedurally generated challenges, Dodge black holes and meteors, Endless survival gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hello Rocket free?

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

### Is Gravnoid free?

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

### Which has better reviews, Hello Rocket or Gravnoid?

Gravnoid is rated higher. Hello Rocket averages 4.1 out of 5 from 8 ratings, while Gravnoid averages 5.0 from 5 ratings.

### Do Hello Rocket or Gravnoid have ads?

Neither Hello Rocket nor Gravnoid shows ads.

### Which is updated more often, Hello Rocket or Gravnoid?

Hello Rocket ships an update every 10 days, and Gravnoid every 6 weeks. Most recently, Hello Rocket was updated on September 30, 2026 and Gravnoid on September 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.*