# Space Rocket Exploration vs Mellow Submarine

The clearest difference is ads: Mellow Submarine at none against Space Rocket Exploration's shown. On price, update cadence, 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.

Space Rocket Exploration ships an update monthly, Mellow Submarine every 5 weeks. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Space Rocket Exploration | Mellow Submarine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (313 ratings)](https://appshunter.io/ios/app/space-rocket-exploration/id1503436748/reviews)** | — |
| Number of ratings | **313** | — |
| Positive reviews | 69.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Ad-supported | — |
| Size | 216 MB | 64 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Genc Sadiku](https://appshunter.io/developer/1226282762) | [Bertac Severcan](https://appshunter.io/developer/1558347800) |

## What reviewers say

### Space Rocket Exploration

[App page](https://appshunter.io/ios/app/space-rocket-exploration/id1503436748)

Build and launch custom rockets to explore planets and moons in our solar system. Construct a space station with unlimited potential and deploy various satellites. Experience realistic space physics and astonishing graphics.

**Highlights:** Build custom rockets, Explore solar system planets and moons, Construct unlimited space stations, Launch and control satellites, Realistic space physics simulation, Astonishing graphics

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Smooth gameplay
- 🌟 Great graphics
- 👍 Easy to use
- 💯 Awesome game

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🔍 Lack of tutorials
- 🔌 Ads interrupting gameplay
- 🔧 Difficult to build space stations

**Reported bugs**

- Rockets exploding on launch
- Satellites randomly exploding in orbit
- Inability to remove space station parts
- Orbit lines not showing correctly

**Requested features**

- Add landing on planets
- Improve space station building
- Introduce more rocket parts
- Add astronaut and EVA functionality
- Implement interplanetary travel


### Mellow Submarine

[App page](https://appshunter.io/ios/app/mellow-submarine/id6746043366)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Rocket Exploration free?

Space Rocket Exploration is free to download, with no in-app purchases.

### Is Mellow Submarine free?

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

### Do Space Rocket Exploration or Mellow Submarine have ads?

Space Rocket Exploration shows ads; Mellow Submarine does not.

### Which is updated more often, Space Rocket Exploration or Mellow Submarine?

Space Rocket Exploration ships an update monthly, and Mellow Submarine every 5 weeks. Most recently, Space Rocket Exploration was updated on September 24, 2026 and Mellow Submarine on September 17, 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.*