# Fix EV3 Rover vs Spaceflight Simulator

The clearest difference is update cadence: Spaceflight Simulator at every 9 days against Fix EV3 Rover's every 10 months. Spaceflight Simulator also leads on ratings volume (98K vs 9) and rating (4.8 vs 4.6). Fix EV3 Rover's advantage is monetization model (free vs free with in-app purchases) and review sentiment (100% vs 85%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fix EV3 Rover sells 1 one-off in-app purchase and Spaceflight Simulator sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Spaceflight Simulator holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Spaceflight Simulator has 98K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 100% of Fix EV3 Rover's written reviews are positive against 85% of Spaceflight Simulator's, so the app with the better star average is not the one people write more warmly about.

Fix EV3 Rover ships an update every 10 months, Spaceflight Simulator every 9 days. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Fix EV3 Rover | Spaceflight Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/fix-ev3-rover/id1107122016/reviews) | **[4.8 (98K ratings)](https://appshunter.io/ios/app/spaceflight-simulator/id1308057272/reviews)** |
| Number of ratings | 9 | **98K** |
| Positive reviews | **100.0% of reviews** | 85.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 172 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [David Offen](https://appshunter.io/developer/1107122015) | [Spaceflight Simulator UK Ltd](https://appshunter.io/developer/1308057271) |

## What reviewers say

### Fix EV3 Rover

[App page](https://appshunter.io/ios/app/fix-ev3-rover/id1107122016)

Program a robot vehicle using instructions inspired by LEGO MINDSTORMS EV3. Learn basic programming techniques useful for robotics competitions without needing any equipment or prior experience. Explore a new planet by guiding the robot through challenges.

**Highlights:** LEGO MINDSTORMS EV3-inspired programming, Icon-based and Scratch-based language options, Learn programming for robotics competitions, Robot equipped with motors and sensors, Progressively complex game levels, In-game symbol dictionary

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fix EV3 Rover Pro upgrade | $0.99 | one-time |


### Spaceflight Simulator

[App page](https://appshunter.io/ios/app/spaceflight-simulator/id1308057272)

Build and launch rockets to explore a realistic, open universe. Experience space exploration with accurate physics and a vast, explorable solar system.

**Highlights:** Build custom rockets, Realistic orbital mechanics, Explore a scaled universe, Visit planets and moons, Open-world space exploration, Real-life physics simulation

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skins Expansion | $2.99 | one-time |
| Full Version | $3.99 | one-time |
| Redstone + Atlas Pack | $3.99 | one-time |
| Parts Expansion | $4.99 | one-time |
| Infinite Area Expansion | $4.99 | one-time |
| Expansion Bundle | $7.99 | one-time |
| Cheats Expansion | $9.99 | one-time |
| Full Bundle Upgrade | $9.99 | one-time |
| Full Bundle | $11.99 | one-time |
| Full Bundle | $14.99 | one-time |

**What reviewers like**

- 🚀 Realistic physics and space simulation
- 👍 Intuitive controls and easy to learn
- 🚀 Ability to build complex rockets and spacecraft
- 👍 No ads or in-app purchases required to play

**What reviewers complain about**

- 🐛 Occasional bugs and glitches, especially with large rockets
- 🔋 Potential performance issues on older devices
- 🔒 Limited customization and part options in free version
- 🚀 Docking and rendezvous maneuvers can be very challenging

**Reported bugs**

- Rocket parts sometimes clipping through each other
- Occasional freezing or crashing when launching large rockets
- Issues with RCS thrusters firing unexpectedly during docking
- Problems with maintaining stable orbits and transfers

**Requested features**

- Add more planets, moons, and celestial bodies to explore
- Implement a career mode or progression system with challenges
- Allow for more customization of rocket parts and spacecraft
- Improve docking and rendezvous mechanics to make them more accessible
- Add the ability to control individual astronauts and perform EVAs


## Frequently asked questions

### Is Fix EV3 Rover free?

Fix EV3 Rover is free to download, with in-app purchases available.

### Is Spaceflight Simulator free?

Spaceflight Simulator is free to download, with in-app purchases available.

### Which has better reviews, Fix EV3 Rover or Spaceflight Simulator?

Spaceflight Simulator is rated higher. Fix EV3 Rover averages 4.6 out of 5 from 9 ratings, while Spaceflight Simulator averages 4.8 from 98K ratings.

### Do Fix EV3 Rover or Spaceflight Simulator have ads?

Neither Fix EV3 Rover nor Spaceflight Simulator shows ads.

### Which is updated more often, Fix EV3 Rover or Spaceflight Simulator?

Fix EV3 Rover ships an update every 10 months, and Spaceflight Simulator every 9 days. Most recently, Fix EV3 Rover was updated on October 3, 2026 and Spaceflight Simulator on October 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.*