# Solar Walk vs Univerzoom 3D

The clearest difference is in-app purchases: Univerzoom 3D at none against Solar Walk's 11. Univerzoom 3D also leads on review sentiment (97% vs 72%) and update cadence (every 2 months vs every 5 months). Solar Walk's advantage is ratings volume (8.2K vs 289). On rating, ads, device support and iOS requirement there is nothing between them.

Solar Walk costs $4.99 and Univerzoom 3D $2.99 up front. Solar Walk sells 11 one-off in-app purchases. Univerzoom 3D asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Solar Walk against 4.8 for Univerzoom 3D. That said, the two scores are not equally well evidenced: Solar Walk has 8.2K ratings behind it against 289, so its average is the more settled of the two. Written reviews are what separate them: 72% of Solar Walk's written reviews are positive against 97% of Univerzoom 3D's.

Solar Walk ships an update every 5 months, Univerzoom 3D every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Solar Walk | Univerzoom 3D |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | [4.7 (8.2K ratings)](https://appshunter.io/ios/app/solar-walk-space-simulator-3d/id347546771/reviews) | **[4.8 (289 ratings)](https://appshunter.io/ios/app/univerzoom-3d-explore-scale/id1552648156/reviews)** |
| Number of ratings | **8.2K** | 289 |
| Positive reviews | 72.2% of reviews | **97.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 451 MB | 255 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vito Technology Inc.](https://appshunter.io/developer/289641503) | [Linda Schnetzinger](https://appshunter.io/developer/1479825448) |

## 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


### Univerzoom 3D

[App page](https://appshunter.io/ios/app/univerzoom-3d-explore-scale/id1552648156)

Explore the vastness of the universe and the intricacies of the microcosmos with intuitive touch controls. Compare celestial bodies, everyday objects, and subatomic particles to grasp their true scale. Discover fascinating facts and learn about the cosmos and beyond.

**Highlights:** Intuitive gesture-based scaling, Explore universe to atomic levels, Compare sizes of diverse objects, Learn facts about celestial bodies, Text-to-Speech for facts, External resource links

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar Walk free?

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

### Is Univerzoom 3D free?

Univerzoom 3D costs $2.99, with no in-app purchases.

### Which has better reviews, Solar Walk or Univerzoom 3D?

Univerzoom 3D is rated higher. Solar Walk averages 4.7 out of 5 from 8.2K ratings, while Univerzoom 3D averages 4.8 from 289 ratings.

### Do Solar Walk or Univerzoom 3D have ads?

Neither Solar Walk nor Univerzoom 3D shows ads.

### Which is updated more often, Solar Walk or Univerzoom 3D?

Solar Walk ships an update every 5 months, and Univerzoom 3D every 2 months. Most recently, Solar Walk was updated on November 1, 2026 and Univerzoom 3D on October 29, 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.*