# Solar Walk vs GCP Test Sim

The clearest difference is price: GCP Test Sim at Free against Solar Walk's $4.99. Solar Walk's advantage is ads (none vs shown) and iOS requirement (15.0 vs 18.0). On in-app purchases and device support there is nothing between them.

GCP Test Sim is free to download; Solar Walk costs $4.99 up front. Solar Walk sells 11 one-off in-app purchases and GCP Test Sim sells 5 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Solar Walk | GCP Test Sim |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (8.2K ratings)](https://appshunter.io/ios/app/solar-walk-space-simulator-3d/id347546771/reviews)** | — |
| Number of ratings | **8.2K** | — |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 451 MB | 25 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vito Technology Inc.](https://appshunter.io/developer/289641503) | [Aaratus, inc.](https://appshunter.io/developer/1774774771) |

## What reviewers say

### Solar Walk

[App page](https://appshunter.io/ios/app/solar-walk-space-simulator-3d/id347546771)

Explore a detailed 3D model of our solar system and the universe. Interact with planets, moons, and satellites, and take virtual flights through space. Travel through time to see the universe's past and learn with educational movies.

**Highlights:** Interactive 3D solar system model, Virtual flights between celestial bodies, Time travel feature for historical views, Educational movies about space, Orrery and true-to-scale view modes, Milky Way Galaxy view

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mission of Cassini-Huygens | Free | one-time |
| Cycles of the Earth System | Free | one-time |
| Major Circles of Latitude | Free | one-time |
| Movies Bundle | Free | one-time |
| 3D Satellites in Real Time | Free | one-time |
| Planets of the Solar System | Free | one-time |
| What is a Solar Eclipse? | Free | one-time |
| The Moon Phases Explanation | Free | one-time |
| Zodiacal Constellations | Free | one-time |
| High Resolution Bundle | $1.99 | one-time |
| All Additional Content - Sale | $2.99 | one-time |

**What reviewers like**

- 🌟 Excellent graphics and visuals
- 🔍 Detailed information about the solar system
- 🌍 Ability to explore the planets and moons
- 🎥 Informative videos and animations
- 🧠 Educational and informative for all ages

**What reviewers complain about**

- 💰 Expensive in-app purchases required to unlock full features
- 🐛 Bugs and crashes reported, especially after updates
- 🕹️ Navigation and controls can be unintuitive
- 🌌 Limited to just the solar system, no other galaxies or deep space

**Reported bugs**

- App crashes on launch for some users
- In-app purchases not working correctly
- Freezing and performance issues on older devices
- Incorrect planet/moon positioning and timing

**Requested features**

- Add more planets, moons, and objects to the solar system
- Expand to include other star systems and galaxies
- Improve navigation and controls for easier exploration
- Offer more free content instead of paid add-ons
- Fix reported bugs and crashes


### GCP Test Sim

[App page](https://appshunter.io/ios/app/gcp-test-sim/id6743862386)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $14.99 | per month |
| 3 Month Subscription | $29.99 | per 3 months |
| 6 Month Subscription | $49.99 | per 6 months |
| Annual Subscription (12 Month) | $79.99 | per year |
| Lifetime Membership | $99.99 | one-time |


## Frequently asked questions

### Is Solar Walk free?

Solar Walk costs $4.99, and also offers in-app purchases.

### Is GCP Test Sim free?

GCP Test Sim is free to download, with in-app purchases available.

### Do Solar Walk or GCP Test Sim have ads?

GCP Test Sim shows ads; Solar Walk does not.

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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.*