# Interplanetary III vs Spaceship Rocket Simulator

The clearest difference is price: Spaceship Rocket Simulator at Free against Interplanetary III's $0.99. Spaceship Rocket Simulator also leads on in-app purchases (none vs 4). Interplanetary III's advantage is rating (4.5 vs 2.3) and ads (none vs shown). On ratings volume and device support there is nothing between them.

Spaceship Rocket Simulator is free to download; Interplanetary III costs $0.99 up front. Interplanetary III sells 4 one-off in-app purchases. Spaceship Rocket Simulator asks for nothing beyond the download.

Interplanetary III holds the better App Store score, 4.5 against 2.3. Both are backed by a comparable volume of ratings — 23 and 9 respectively. Written reviews point the same way: 33% of Interplanetary III's written reviews are positive against 0% of Spaceship Rocket Simulator's.

Interplanetary III ships an update every 2 weeks, Spaceship Rocket Simulator every 6 weeks. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Interplanetary III | Spaceship Rocket Simulator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.5 (23 ratings)](https://appshunter.io/ios/app/interplanetary-iii/id1435464696/reviews)** | [2.3 (9 ratings)](https://appshunter.io/ios/app/spaceship-rocket-simulator/id6449421789/reviews) |
| Number of ratings | **23** | 9 |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Paid | **Ad-supported** |
| Size | 338 MB | 143 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Wenda Li](https://appshunter.io/developer/1435464695) | [Muhammad Rashid](https://appshunter.io/developer/1712841055) |

## What reviewers say

### Interplanetary III

[App page](https://appshunter.io/ios/app/interplanetary-iii/id1435464696)

Experience an immersive 3D rocket simulation game. Launch, fly, and control renowned rockets from around the world to destinations like the Moon and Mars. Navigate through space encountering meteorites and asteroids for a thrilling journey.

**Highlights:** 3D rocket simulation, Launch and fly rockets, Control renowned rockets, Explore Moon and Mars, Encounter space phenomena, Simple launch mechanics

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Cosmic Cube | $1.99 | one-time |
| Three Cosmic Cubes | $4.99 | one-time |
| Six Cosmic Cubes | $8.99 | one-time |
| Own All Rockets | $19.99 | one-time |


### Spaceship Rocket Simulator

[App page](https://appshunter.io/ios/app/spaceship-rocket-simulator/id6449421789)

Build and launch custom rockets to explore the galaxy. Experience realistic orbital mechanics and discover new planets and alien life. Defend your civilizations from cosmic threats in this open-universe space flight simulator.

**Highlights:** Build custom rockets from parts, Realistic orbital mechanics, Explore open universe, Discover new planets and alien life, Defend planets from threats, Recreate favorite space flights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interplanetary III free?

Interplanetary III costs $0.99, and also offers in-app purchases.

### Is Spaceship Rocket Simulator free?

Spaceship Rocket Simulator is free to download, with no in-app purchases.

### Which has better reviews, Interplanetary III or Spaceship Rocket Simulator?

Interplanetary III is rated higher. Interplanetary III averages 4.5 out of 5 from 23 ratings, while Spaceship Rocket Simulator averages 2.3 from 9 ratings.

### Do Interplanetary III or Spaceship Rocket Simulator have ads?

Spaceship Rocket Simulator shows ads; Interplanetary III does not.

### Which is updated more often, Interplanetary III or Spaceship Rocket Simulator?

Interplanetary III ships an update every 2 weeks, and Spaceship Rocket Simulator every 6 weeks. Most recently, Interplanetary III was updated on September 16, 2026 and Spaceship Rocket Simulator on September 14, 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.*