# UrCase Leap vs Solar System Sim

The clearest difference is review sentiment: Solar System Sim at 80% against UrCase Leap's 0%. Solar System Sim also leads on rating (4.5 vs 3.6) and ratings volume (4.3K vs 11). UrCase Leap's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. UrCase Leap sells 1 one-off in-app purchase and Solar System Sim sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Solar System Sim holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Solar System Sim has 4.3K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 0% of UrCase Leap's written reviews are positive against 80% of Solar System Sim's.

UrCase Leap ships an update fortnightly, Solar System Sim every 4 days. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | UrCase Leap | Solar System Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (11 ratings)](https://appshunter.io/ios/app/urcase-leap-galaxy-explorer/id1534935320/reviews) | **[4.5 (4.3K ratings)](https://appshunter.io/ios/app/solar-system-sim/id6447612221/reviews)** |
| Number of ratings | 11 | **4.3K** |
| Positive reviews | 0.0% of reviews | **80.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 248 MB | 521 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UrCase](https://appshunter.io/developer/1033102887) | [WPC](https://appshunter.io/developer/1681830786) |

## What reviewers say

### UrCase Leap

[App page](https://appshunter.io/ios/app/urcase-leap-galaxy-explorer/id1534935320)

Embark on an interstellar journey in this simple action game. Leap through the atmosphere to explore the universe, upgrade your rocket, and capture unique matter. Compete globally and unlock rare characters as you strive to reach the galaxy's end.

**Highlights:** Upgrade Rockets, Capture UrMatter, Chain Super Combos, Find the End of the Galaxy, Collect All Statues, Unlock Rare Characters, Worldwide Ranking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $1.99 | one-time |


### Solar System Sim

[App page](https://appshunter.io/ios/app/solar-system-sim/id6447612221)

Simulate and explore celestial bodies within our solar system and beyond. Create your own solar systems, experiment with gravity and physics, and observe orbital mechanics in action.

**Highlights:** Explore planets and moons, Visit nearby stars, Create custom solar systems, Gravity and physics simulation, Recalculate orbits, Newton's laws implementation

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HD Mars | $2.99 | one-time |
| HD Earth | $2.99 | one-time |
| HD Moon | $2.99 | one-time |
| No-ads | $3.99 | one-time |
| HD 3-body pack | $6.99 | one-time |

**What reviewers like**

- 🚀 Realistic simulation
- 🚀 Detailed solar system
- 🚀 Ability to create custom solar systems
- 🚀 Impressive graphics
- 🚀 Frequent updates

**What reviewers complain about**

- 🐛 Crashes and glitches
- 🔋 High battery consumption
- 💰 Excessive ads
- 🐛 Saving and loading issues
- 🐛 Unstable orbits

**Reported bugs**

- Planets/moons disappearing after saving and loading
- Bright flashes and screen distortions
- Planets/objects getting stuck inside stars
- Crashes when colliding or editing certain objects
- Inconsistent orbital mechanics and moons ejecting from planets

**Requested features**

- Add more galaxy and nebula textures
- Implement realistic supernova effects
- Allow customization of planet atmospheres and terrain
- Add binary star systems and rogue planets
- Introduce a galaxy maker and collision feature


## Frequently asked questions

### Is UrCase Leap free?

UrCase Leap is free to download, with in-app purchases available.

### Is Solar System Sim free?

Solar System Sim is free to download, with in-app purchases available.

### Which has better reviews, UrCase Leap or Solar System Sim?

Solar System Sim is rated higher. UrCase Leap averages 3.6 out of 5 from 11 ratings, while Solar System Sim averages 4.5 from 4.3K ratings.

### Do UrCase Leap or Solar System Sim have ads?

Both UrCase Leap and Solar System Sim show ads.

### Which is updated more often, UrCase Leap or Solar System Sim?

UrCase Leap ships an update fortnightly, and Solar System Sim every 4 days. Most recently, UrCase Leap was updated on October 10, 2026 and Solar System Sim on October 20, 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.*