# Spaceflight Simulator vs Interloper

The clearest difference is price: Spaceflight Simulator at Free against Interloper's $1.99. Spaceflight Simulator also leads on ratings volume (98K vs 533) and rating (4.8 vs 4.5). Interloper's advantage is in-app purchases (none vs 11) and iOS requirement (13.0 vs 15.0). On update cadence, ads and device support there is nothing between them.

Spaceflight Simulator is free to download; Interloper costs $1.99 up front. Spaceflight Simulator sells 10 one-off in-app purchases. Interloper asks for nothing beyond the download.

Spaceflight Simulator holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Spaceflight Simulator has 98K ratings behind it against 533, so its average is the more settled of the two. Written reviews point the same way: 86% of Spaceflight Simulator's written reviews are positive against 67% of Interloper's.

Spaceflight Simulator ships an update every 9 days, Interloper fortnightly. Both last shipped on September 28, 2026.

## The numbers

| Metric | Spaceflight Simulator | Interloper |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (98K ratings)](https://appshunter.io/ios/app/spaceflight-simulator/id1308057272/reviews)** | [4.5 (533 ratings)](https://appshunter.io/ios/app/interloper/id1447337759/reviews) |
| Number of ratings | **98K** | 533 |
| Positive reviews | **85.5% of reviews** | 66.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 172 MB | 200 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod, Mac | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 12+ |
| Developer | [Spaceflight Simulator UK Ltd](https://appshunter.io/developer/1308057271) | [Mathew Purchase](https://appshunter.io/developer/1086795797) |

## What reviewers say

### 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


### Interloper

[App page](https://appshunter.io/ios/app/interloper/id1447337759)

Experience intense space combat with a six-degrees-of-freedom flight simulator. Engage in fast-paced missions, customize your fighter with various load-outs, and build your arsenal with salvaged gear. Play solo or with elite squadrons.

**Highlights:** Six degrees of freedom flight, MFi controller support, Intense haptics, Fast-paced missions, Fighter customization, Salvaged gear and arsenal building, Squadron support

**Features:** Game Controller support, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent gameplay and controls
- 🚀 Immersive space combat experience
- 🚀 Satisfying weapon feedback
- 👍 Unique and appealing visual style
- 👍 Good value for the price

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🐛 Progression and save issues
- 🔋 Overheating and battery drain on some devices
- 🔒 Unresponsive or confusing UI controls
- 🔒 Difficulty balancing and progression

**Reported bugs**

- Tutorial not functioning properly
- Weapons not firing correctly
- Missions getting stuck or not completing
- Inconsistent save and progression tracking
- UI elements overlapping or disappearing

**Requested features**

- Multiplayer mode
- Expanded mission and level variety
- Pilot and ship customization options
- Clearer progression and reward systems
- Performance optimizations for older devices


## Frequently asked questions

### Is Spaceflight Simulator free?

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

### Is Interloper free?

Interloper costs $1.99, with no in-app purchases.

### Which has better reviews, Spaceflight Simulator or Interloper?

Spaceflight Simulator is rated higher. Spaceflight Simulator averages 4.8 out of 5 from 98K ratings, while Interloper averages 4.5 from 533 ratings.

### Do Spaceflight Simulator or Interloper have ads?

Neither Spaceflight Simulator nor Interloper shows ads.

### Which is updated more often, Spaceflight Simulator or Interloper?

Spaceflight Simulator ships an update every 9 days, and Interloper fortnightly. Most recently, Spaceflight Simulator was updated on September 28, 2026 and Interloper on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*