# Space Images vs Solar Walk

The clearest difference is price: Space Images at Free against Solar Walk's $4.99. Space Images also leads on in-app purchases (none vs 10). Solar Walk's advantage is ratings volume (8.2K vs 16) and review sentiment (72% vs 63%). On rating, update cadence, ads and device support there is nothing between them.

Space Images is free to download; Solar Walk costs $4.99 up front. Solar Walk sells 10 one-off in-app purchases. Space Images asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Space Images against 4.7 for Solar Walk. That said, the two scores are not equally well evidenced: Solar Walk has 8.2K ratings behind it against 16, so its average is the more settled of the two. Written reviews are what separate them: 63% of Space Images's written reviews are positive against 72% of Solar Walk's.

Space Images ships an update every 4 months, Solar Walk every 5 months. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Space Images | Solar Walk |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.6 (16 ratings)](https://appshunter.io/ios/app/space-images/id347075764/reviews) | **[4.7 (8.2K ratings)](https://appshunter.io/ios/app/solar-walk-space-simulator-3d/id347546771/reviews)** |
| Number of ratings | 16 | **8.2K** |
| Positive reviews | 63.0% of reviews | **72.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 451 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) | [Vito Technology Inc.](https://appshunter.io/developer/289641503) |

## What reviewers say

### Space Images

[App page](https://appshunter.io/ios/app/space-images/id347075764)

Explore breathtaking images from NASA missions, featuring planets, galaxies, and space technology. This app offers widgets for your home screen and StandBy mode, allowing you to view a slideshow while your device charges. You can also bookmark, search, and share your favorite celestial discoveries.

**Highlights:** Latest NASA space images, Widgets for home screen, StandBy mode slideshow, Image notifications, Search and browse categories, Bookmark and share images

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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


## Frequently asked questions

### Is Space Images free?

Space Images is free to download, with no in-app purchases.

### Is Solar Walk free?

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

### Which has better reviews, Space Images or Solar Walk?

Solar Walk is rated higher. Space Images averages 4.6 out of 5 from 16 ratings, while Solar Walk averages 4.7 from 8.2K ratings.

### Do Space Images or Solar Walk have ads?

Neither Space Images nor Solar Walk shows ads.

### Which is updated more often, Space Images or Solar Walk?

Space Images ships an update every 4 months, and Solar Walk every 5 months. Most recently, Space Images was updated on November 4, 2026 and Solar Walk on November 1, 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.*