# Gravity One vs Watermelon

The clearest difference is ads: Gravity One at none against Watermelon's shown. Watermelon's advantage is update cadence (every 2 days vs every 9 months) and iOS requirement (12.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Gravity One ships an update every 9 months, Watermelon every 2 days. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Gravity One | Watermelon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/watermelon-merge-solar-system/id6472978476/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 15 MB | 116 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Sami Salkosuo](https://appshunter.io/developer/820432278) | [Davut Inat](https://appshunter.io/developer/1659681257) |

## What reviewers say

### Gravity One

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Watermelon

[App page](https://appshunter.io/ios/app/watermelon-merge-solar-system/id6472978476)

Merge smaller celestial bodies to create larger planets and expand your solar system. Earn points by combining planets and aim for the highest score to climb the global leaderboard. Enjoy a unique space exploration and merging experience.

**Highlights:** Merge planets, Explore solar system, Earn points, Climb leaderboard, High score challenge

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gravity One free?

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

### Is Watermelon free?

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

### Do Gravity One or Watermelon have ads?

Watermelon shows ads; Gravity One does not.

### Which is updated more often, Gravity One or Watermelon?

Gravity One ships an update every 9 months, and Watermelon every 2 days. Most recently, Gravity One was updated on October 2, 2026 and Watermelon on October 24, 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.*