# Rocket Block Go vs Gravity Courier

The clearest difference is in-app purchases: Rocket Block Go at none against Gravity Courier's 1. Rocket Block Go also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Gravity Courier sells 1 one-off in-app purchase. Rocket Block Go asks for nothing beyond the download.

Rocket Block Go ships an update every 4 days, Gravity Courier every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Rocket Block Go | Gravity Courier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 250 MB | 32 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wooyoung Jung](https://appshunter.io/developer/1884564952) | [Jegeon Jung](https://appshunter.io/developer/1825889536) |

## What reviewers say

### Rocket Block Go

[App page](https://appshunter.io/ios/app/rocket-block-go/id6760458129)

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

**In-app purchases:** none


### Gravity Courier

[App page](https://appshunter.io/ios/app/gravity-courier-orbit-puzzle/id6777101289)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고제거 | $1.99 | one-time |


## Frequently asked questions

### Is Rocket Block Go free?

Rocket Block Go is free to download, with no in-app purchases.

### Is Gravity Courier free?

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

### Do Rocket Block Go or Gravity Courier have ads?

Both Rocket Block Go and Gravity Courier show ads.

### Which is updated more often, Rocket Block Go or Gravity Courier?

Rocket Block Go ships an update every 4 days, and Gravity Courier every 2 weeks. Most recently, Rocket Block Go was updated on October 31, 2026 and Gravity Courier on October 31, 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.*