4Dice vs The Fourth Dimension
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4Dice
Explore a hypercube visualized as a 4-dimensional, 8-sided die. Interact with the die using multitouch controls to reveal its hidden faces as they come into view during rolls. Experience a unique perspective on geometric visualization.
- Multitouch controls
- 4D hypercube exploration
- Interactive die rolling
- Geometric visualization
- Unique perspective rendering
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This application exploits multitouch controls to explore a hypercube labeled as a 4-dimensional, 8-sided die. The hypercube's eight cube-shaped faces are rendered as a 4D being would see them in 4D light: thus, only one, two, three, or four cubic faces can appear at one time while the die rolls, but no more. Faces that would be invisible to a 4D gambler cannot be seen without interactively rolling the die to bring them into view.
The Fourth Dimension
Explore a complex mathematical concept through an interactive 3D experience. This app uses a unique touch interface to help you visualize and understand the fourth dimension in an engaging and accessible way.
- Interactive 3D touch interface
- Explains the fourth dimension
- Accessible language for all
- 30-page interactive book
- Visual and hands-on learning
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The Fourth Dimension is a 30-page interactive book that explains a single mathematical idea in language that anyone can understand. Instead of static images or canned videos, this app employs a unique 3D touch interface that lets you literally grasp the concept of the fourth dimension with your own hands. “Not only can you blow your own mind over and over again, you can also enjoy watching your friends’ minds being blown in front of you.” — Cult of Mac “One of the coolest apps I've ever used... The Fourth Dimension is to boring learning apps what Carl Sagan's Cosmos was to staid science documentaries.” — BuzzFeed “The app is very cool, and it's unlike pretty much anything we've seen in the App Store.” — The Verge “This is one of my most favorite iOS apps ever.” — George Musser, contributing editor for Scientific American and author of The Complete Idiot's Guide to String Theory (App Store user reviews follow.) “Blew my mind. I generally don't use 'learning' apps as they're mostly gimmicks. This one, though, truly made me think. I hope this developer comes out with more outstanding apps such as this one. Bravo!” — Iceitic “Astounding. That some people care passionately enough about tesseracts to go create a fantastic app for others to understand them is incredible. The app is extremely well designed, wittily written, and executed with love. That alone is worth buying it, besides the fact that I learned what the hell a tesseract was.” — Duncan MacMichael “Fantastic! This is what someone really smart, and who really knows how to teach well, can do with a tablet. And the authors are funny, too, which is a neat bonus.” — DNY “Fantastic app. I work at a leading UK university. If only all our material was this well written and presented. Definitely worth buying and then spending a bit of time with over a day or two to get your head around the fourth dimension. Great app!” — JulesFM “Great job! This app does the best job explaining the 4th dimension. Why learn it in some boring classroom when here you can have an interactive and visual explanation.” — Aco Strklalj Over 250,000 people have blown their minds with this app.
Screenshots
Verdict
The clearest difference is price: 4Dice at Free against The Fourth Dimension's $2.99. 4Dice also leads on rating (5.0 vs 4.8) and iOS requirement (9.3 vs 12.0). The Fourth Dimension's advantage is ratings volume (1.9K vs 3) and update cadence (every 4 months vs every 18 months). On review sentiment, ads, in-app purchases and device support 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
4Dice is free to download; The Fourth Dimension costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
4Dice holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: The Fourth Dimension has 1.9K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of 4Dice's written reviews are positive against 94% of The Fourth Dimension's.
4Dice ships an update every 18 months, The Fourth Dimension every 4 months. The most recent releases landed on June 5, 2026 and September 23, 2026 respectively.
| Parameter | 4Dice | The Fourth Dimension |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (3 ratings) — better | 4.8 (1.9K ratings) |
| Positive reviews | 100.0% of reviews — better | 94.2% of reviews |
| Number of ratings | 3 | 1.9K — better |
| Update frequency | Every 18 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 12.0 |
| Further details — not scored | ||
| Size | 15 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Andrew Hanson | Lunar Skydiving LLC |
Customer experience
4Dice
The Fourth Dimension
In-app purchases
4Dice
No in-app purchases
The Fourth Dimension
No in-app purchases
Questions
Is 4Dice free?
Is The Fourth Dimension free?
Which has better reviews, 4Dice or The Fourth Dimension?
Do 4Dice or The Fourth Dimension have ads?
Which is updated more often, 4Dice or The Fourth Dimension?
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