The Fourth Dimension Downloads & RevenueThe Fourth Dimension · App Store
The Fourth Dimension is #155 in Education Paid in China and charting in 3 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperLunar Skydiving LLC
CategoryEducation
Price3.99 CAD
Released
Rating★ 4.8 (198)
Version1.15
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)500k+ worldwide
The Fourth Dimension update history & changes
Last change · 18 events since 19 Mar 2012Full timeline ↓⭐Passed 1K ratings📦Updated to version 1.15📦First update in 1111 days⭐Passed 1K ratings📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 17 events in the last 12 months
- ✏️The Fourth Dimension: needs a newer iOSiOS 12.0 → iOS 15.0
- 📦The Fourth Dimension updated to version 1.15iOS 27용 업데이트.
- 📦The Fourth Dimension: first update in 1111 days
- 📈The Fourth Dimension entered the top 100Top Paid · Education · CA
- 📈The Fourth Dimension charting in a new countryCanada
- 📈The Fourth Dimension charting in a new countryUnited Kingdom
- 📈The Fourth Dimension entered the top 100Top Paid · Education · CN
- 🆕The Fourth Dimension first spotted by AppInsider#21 in Top Paid · Education · China
- 📈The Fourth Dimension charting in a new country in 2 chartsItaly · South Korea
- 🆕The Fourth Dimension released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.8 ★
198 ratings
Measured
Best rank now
#155
Education PaidMeasured
The Fourth Dimension on the App Store
App details
App ID
504201783
Publisher
Lunar Skydiving LLC
On the store since
Mar 2012
14 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
10
EN FR DE IT JA KO RU ZH ES ZH
Size
6 MB
Also listed in
Books
The Fourth Dimension downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where The Fourth Dimension's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | EducationPaid | #155 |
 South Korea | EducationPaid | #182 |
 Italy | EducationPaid | #195 |
Apps near The Fourth Dimension on the chart
Education Paid, around #155.
Ratings
App Store, worldwide.
Rating
4.8 ★
198 ratings
Measured
Ratings
198
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.9★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
54/100
faster than 57% of Education apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About The Fourth Dimension
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.
“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.
Latest updates
1.15
iOS 27용 업데이트.
1.14
Updated for iOS 17.
Plays audio when the device's Silent Mode is on.
Store changes
What The Fourth Dimension changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Needs a newer iOS
iOS 12.0 → iOS 15.0