Professor Maxwell’s 4D Galaxy vs VR Universe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Professor Maxwell’s 4D Galaxy
Explore space science through interactive augmented and virtual reality projects. Build models, walk on the moon, and discover planets and Earth's layers with engaging, lifelike experiences.
- Augmented Reality (AR) experiences
- Virtual Reality (VR) experiences
- 20 interactive science projects
- Build a Sundial
- Explore Solar System planets
- Discover Earth's layers
- Walk on the Moon surface
Read full descriptionHide full description
Immerse yourself into Professor Maxwell’s 4D Galaxy and discover the science behind space with 20 interactive projects that come alive in Augmented and Virtual reality! Build a Sundial, walk on the surface of the Moon, discover the planets in our Solar System, dive into the layers of our Earth and so much more with Professor Maxwell’s 4D Galaxy! Simply download the app and watch as Professor Maxwell comes to life, right on top of your book!
VR Universe
Explore the universe with interactive augmented and virtual reality experiences. Learn about space, planets, and the International Space Station through hands-on projects like building a planetarium and launching a rocket. Bring educational content to life by holding your device over a special book.
- Augmented and virtual reality experiences
- Interactive space exploration
- Hands-on science projects
- Learn about planets and the solar system
- Bring educational content to life
Read full descriptionHide full description
Join Professor Maxwell to explore the wonders of our universe with dozens of projects that come alive in augmented and virtual reality! Journey through space to learn about the Sun, our Solar System, planets, the International Space Station and more while experiencing it first-hand in immersive VR. Then get hands on with projects including launching a rocket, building a planetarium and creating a sundial to tell the time, all in Professor Maxwell’s VR Universe! To activate the experiences, simply download the app and hold your phone over the book included in the kit to see Professor Maxwell come to life!
Screenshots
Verdict
The clearest difference is rating: VR Universe at 4.1 against Professor Maxwell’s 4D Galaxy's 2.6. VR Universe also leads on review sentiment (60% vs 41%). Professor Maxwell’s 4D Galaxy's advantage is iOS requirement (9.5 vs 11.0). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VR Universe holds the better App Store score, 4.1 against 2.6. Both are backed by a comparable volume of ratings — 33 and 30 respectively. Written reviews point the same way: 41% of Professor Maxwell’s 4D Galaxy's written reviews are positive against 60% of VR Universe's.
Professor Maxwell’s 4D Galaxy ships an update every 8 months, VR Universe every 5 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.
| Parameter | Professor Maxwell’s 4D Galaxy | VR Universe |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (33 ratings) | 4.1 (30 ratings) — better |
| Positive reviews | 40.6% of reviews | 60.0% of reviews — better |
| Number of ratings | 33 — better | 30 |
| Update frequency | Every 8 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.5 — better | 11.0 |
| Further details — not scored | ||
| Size | 852 MB | 1.2 GB |
| Age rating | 4+ | 4+ |
| Developer | Spicebox | Abacus |
Customer experience
Professor Maxwell’s 4D Galaxy
VR Universe
In-app purchases
Professor Maxwell’s 4D Galaxy
No in-app purchases
VR Universe
No in-app purchases
Questions
Is Professor Maxwell’s 4D Galaxy free?
Is VR Universe free?
Which has better reviews, Professor Maxwell’s 4D Galaxy or VR Universe?
Do Professor Maxwell’s 4D Galaxy or VR Universe have ads?
Which is updated more often, Professor Maxwell’s 4D Galaxy or VR Universe?
Other comparisons
