# Gravity Duel vs Gravity Courier

The clearest difference is in-app purchases: Gravity Duel at none against Gravity Courier's 1. Gravity Duel also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

Gravity Duel ships an update every 3 weeks, Gravity Courier every 2 weeks. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gravity Duel | Gravity Courier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 2 MB | 32 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JIYULMOM](https://appshunter.io/developer/379186743) | [Jegeon Jung](https://appshunter.io/developer/1825889536) |

## What reviewers say

### Gravity Duel

[App page](https://appshunter.io/ios/app/gravity-duel-space-battle/id379186740)

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo 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 Gravity Duel free?

Gravity Duel 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 Gravity Duel or Gravity Courier have ads?

Gravity Courier shows ads; Gravity Duel does not.

### Which is updated more often, Gravity Duel or Gravity Courier?

Gravity Duel ships an update every 3 weeks, and Gravity Courier every 2 weeks. Most recently, Gravity Duel was updated on November 10, 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.*