# Space Crash Simulator vs Swipe the Flow

The clearest difference is ads: Swipe the Flow at none against Space Crash Simulator's shown. Space Crash Simulator's advantage is review sentiment (81% vs 50%) and ratings volume (723 vs 6). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Space Crash Simulator sells 1 one-off in-app purchase and Swipe the Flow sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Space Crash Simulator against 4.3 for Swipe the Flow. That said, the two scores are not equally well evidenced: Space Crash Simulator has 723 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 81% of Space Crash Simulator's written reviews are positive against 50% of Swipe the Flow's.

Space Crash Simulator ships an update every 5 days, Swipe the Flow every 3 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Space Crash Simulator | Swipe the Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (723 ratings)](https://appshunter.io/ios/app/space-crash-simulator/id6742357679/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/swipe-the-flow/id6766940354/reviews) |
| Number of ratings | **723** | 6 |
| Positive reviews | **81.2% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 254 MB | 16 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WPC](https://appshunter.io/developer/1681830786) | [junho kim](https://appshunter.io/developer/1896339140) |

## What reviewers say

### Space Crash Simulator

[App page](https://appshunter.io/ios/app/space-crash-simulator/id6742357679)

Experience realistic planetary collisions with a powerful physics engine. Customize your own cosmic events by adjusting particle count, velocity, and accuracy, or jump straight into high-energy impacts. This app offers a detailed, physics-based simulation for educational or entertainment purposes.

**Highlights:** Smoothed Particle Hydrodynamics (SPH) simulation, Real-time planetary collisions, Customizable simulation parameters, Setup Mode for scenario creation, Adjustable particle count and accuracy, Physics-based detailed simulation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |

**What reviewers like**

- 👍 Great game
- 🚀 Awesome graphics
- 💡 Interesting simulation features
- 🎉 Fun and enjoyable

**What reviewers complain about**

- 🐛 Occasional performance issues
- 💰 Too many ads

**Reported bugs**

- Collision trails not clearing properly
- Protoplanetary disc mode not working as expected

**Requested features**

- Add more celestial objects (black holes, stars, etc.)
- Allow for custom textures and planet/atmosphere customization
- Improve performance and optimization
- Add more graphic options and settings
- Allow for custom rings and moons around planets


### Swipe the Flow

[App page](https://appshunter.io/ios/app/swipe-the-flow/id6766940354)

Explore fluid dynamics and wind simulation with interactive touch controls. Create mesmerizing visuals, solve physics-based challenges, and import images to shape the flow. Save and share your creations as photos or videos.

**Highlights:** Real-time fluid simulation, Interactive touch controls, Photo and logo import, Multiple simulation modes, Physics-based challenges, Photo and video export, Game Center leaderboards

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Droplet Tip | $1.99 | one-time |
| Swipe the Flow Pro | $4.99 | one-time |
| Splash Tip | $4.99 | one-time |
| Wave Tip | $9.99 | one-time |


## Frequently asked questions

### Is Space Crash Simulator free?

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

### Is Swipe the Flow free?

Swipe the Flow is free to download, with in-app purchases available.

### Which has better reviews, Space Crash Simulator or Swipe the Flow?

Space Crash Simulator is rated higher. Space Crash Simulator averages 4.5 out of 5 from 723 ratings, while Swipe the Flow averages 4.3 from 6 ratings.

### Do Space Crash Simulator or Swipe the Flow have ads?

Space Crash Simulator shows ads; Swipe the Flow does not.

### Which is updated more often, Space Crash Simulator or Swipe the Flow?

Space Crash Simulator ships an update every 5 days, and Swipe the Flow every 3 days. Most recently, Space Crash Simulator was updated on October 25, 2026 and Swipe the Flow on October 25, 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.*