# 4D Toys — Mindbending 4D physics objects

> Interactive 4D physics objects for educational exploration and play. (iPhone/iPad app by mtb design works. Inc..)

- Source: https://appshunter.io/ios/app/4d-toys/id1143791442 (this page in markdown: same URL + `.md`)
- Developer: [mtb design works. Inc.](https://appshunter.io/developer/1143791441)
- Category: Education, Games, Simulation
- Price: $6.99
- Rating: 4.80/5 from 691 App Store ratings · 125 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 244 MB
- Languages: American English
- Released: 2017-06-02
- Data updated: 2026-08-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/4d-toys/id1143791442/reviews.md

## What is 4D Toys?

"I am not sure that I've ever seen a more compelling 'show-don't-tell' educational tool than 4D Toys."  –Ars Technica 

What if you received a box filled with mysterious toys from a fourth spatial dimension?

• Playfully explore and marvel at beautiful shapes powered by a groundbreaking 4D+time physics system.
• Poke, throw, roll and watch as they disappear into a dimension you can't see.
• Get an intuitive feel for how four-dimensional objects behave: 
• Become a child of the fourth dimension.

In this case the 4D is not time but a 4th dimension of space that works just like the first three dimensions we are familiar with. If you count time these toys are 5D. It turns out that the rules of how objects bounce, slide and roll around can be generalized to higher dimensions, and this unique toy lets you experience what that would look like.

Features:
• Over 130 beautiful interactive scenes to play with, with more to be added in updates.

• Groundbreaking 4D+Time Physics Engine that uses new mathematics created for this project.

• Multi-touch & Accelerometer support for rich interactivity.

• 2D/3D "Flatland" Interactive 10 Page Book/Explanation that teaches by analogy about a fourth spatial dimension.

• Special buttons: Anti-Gravity, Wireframe Projection, 4D Accelerometer and ability to export meshes for 3D printing.

Some things to do:

• Manage to fit the hypercube into the hyperhole!
• Use the 4D shapes as fancy, perfectly symmetric, fair dice that have 5, 8, 16, 24, or even 120 and 600 sides!
• Unbind Rings using the fourth dimension!
• Make a stack of 4D hypercubes and smash it!
• Set up an interesting path for a few 4D dominoes!
• Make levers that throw hypercubes into the fourth dimension!
• Use multitouch to "squeeze" out objects into the fourth dimension!
• Play in a 4D ball pit!
• See Tesseracts (i.e. 4D hypercubes) slide down slopes!
• etc...!

## Key features

- Groundbreaking 4D+Time Physics Engine
- Over 130 interactive scenes
- 2D/3D 'Flatland' explanation book
- Anti-Gravity and Wireframe Projection
- Export meshes for 3D printing
- Play with hypercubes and hyperholes

## Chart rankings

- #180 in Top Paid · Education (US App Store)

## What do users think of 4D Toys?

Overall sentiment: positive

**Pros**

- 👍 Fascinating and educational
- 🚀 Engaging and fun to play with
- 💡 Provides good 4D intuition
- 🎨 Beautiful visuals and design

**Cons**

- 🐛 Occasional crashes and bugs
- 🔧 Controls can be difficult to master
- 🔍 Limited camera controls and viewpoints
- 💰 Some users feel the price is high

**Commonly reported bugs**

- Crashes on certain devices, especially larger screens
- Issues with the Klein Bottle level and other complex shapes
- Misaligned viewport on some iPhone models

**Most requested features**

- More 4D shapes and toys to play with
- Sandbox mode to create custom 4D scenes
- Ability to rotate the 4D axis and change camera angles
- VR support for a more immersive experience
- More 2D and 3D levels and cross-section views

## Recent user reviews (10 of 125)

All indexed reviews: https://appshunter.io/ios/app/4d-toys/id1143791442/reviews.md

### 5/5 — Don’t mind my nickname it’s not stupid

*2026-07-28, version 1.8.1*

If you love ASMR get this now

### 5/5 — cool

*2026-07-04, version 1.8.1*

i like

### 5/5 — This game is so cool😎😎😎😎😎

*2026-06-26, version 1.8.1*

This game is definitely worth the money
I like that the shape sometimes just disappear, but you can find them with the slider that is on your right 
I like that it has no ads also
Best game ever

### 5/5 — More 4d objects

*2026-06-11, version 1.8.1*

I want you to add a 4d car,1st person view, 4d Rubik’s cube

### 5/5 — Can you please add all 4d toratopes and all of there possible interlinkages to the app please

*2026-06-03, version 1.8.1*

Very good app but could use some updates on the number of shapes, I want more shapes

### 4/5 — It’s a great for learning

*2026-05-30, version 1.8.1*

It’s good but it’s a little laggy so I’m don’t care

### 4/5 — Great game but came with a problem.

*2026-05-07, version 1.8.1*

If you click on the some of toys, it lags a bit then turns back to 60FPS. Can you fix it? If not, that’s fine.

### 5/5 — Great app

*2026-04-09*

Great work! Helped me to more intuitively understand the 4D!

I have 2 feature requests: 
1) Could you please add a possibility to rotate objects in 4D. 
2) Could you please add the visualization of 4D math functions in a complex plane (2D argument space + 2D result space).

### 4/5 — Needs level editor

*2026-04-04, version 1.8.1*

We like this but there are things that we want that are not in this app.

### 5/5 — 4d is the best

*2026-01-01, version 1.8.1*

love this game

## Frequently asked questions about 4D Toys

### What is 4D Toys?

4D Toys is an application that allows users to playfully explore and interact with objects from a fourth spatial dimension. It utilizes a groundbreaking 4D+time physics system to demonstrate how four-dimensional objects behave, offering an intuitive and educational experience.

### What are the key features of 4D Toys?

Key features include over 130 interactive scenes, a unique 4D+Time Physics Engine, multi-touch and accelerometer support, a 2D/3D 'Flatland' explanation book, and special buttons for anti-gravity, wireframe projection, and exporting meshes for 3D printing.

### How much does 4D Toys cost?

Based on the provided information, 4D Toys is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase model.

### What can I do with 4D Toys?

You can engage in various activities like fitting hypercubes into hyperholes, using 4D shapes as dice, unbinding rings using the fourth dimension, smashing stacks of hypercubes, setting up domino paths, and playing in a 4D ball pit. The app encourages creative interaction with these abstract objects.

### Is 4D Toys suitable for learning?

Yes, 4D Toys is described as a compelling educational tool. It provides an intuitive feel for how four-dimensional objects behave and includes a 2D/3D 'Flatland' interactive book that teaches about a fourth spatial dimension by analogy, making abstract concepts more accessible.

## Version history (last 5 releases)

### 1.8.1 — 2023-03-15

Full Blog Post with Videos: https://4dtoys.com/mega/

1. Rotating your 3D slice arbitrarily in 4D

2. Projection of the 2D Faces of the 4D objects

3. Colored Projection of the 1D Lines of the 4D objects

4. A lot of structures made to play with “marbles” and roll them around

5. Scenes with Tesseracts that are fixed at a point but with a torque that keeps them rotating

6. The 1D line version of the 2D “Davinci” 4D Objects

7. A static Klein bottle with a sphere that you can roll inside

8. A 120 cell (faces) and a sphere together

9. Auto-Follow the last touched shape

(+ Quick performance fix for older devices)

### 1.8 — 2023-03-13

Full Blog Post with Videos: https://4dtoys.com/mega/

1. Rotating your 3D slice arbitrarily in 4D

2. Projection of the 2D Faces of the 4D objects

3. Colored Projection of the 1D Lines of the 4D objects

4. A lot of structures made to play with “marbles” and roll them around

5. Scenes with Tesseracts that are fixed at a point but with a torque that keeps them rotating

6. The 1D line version of the 2D “Davinci” 4D Objects

7. A static Klein bottle with a sphere that you can roll inside

8. A 120 cell (faces) and a sphere together

9. Auto-Follow the last touched shape

### 1.7.1 — 2021-12-19

Added the Klein Bottle!

See the complementary explanation video: https://4dtoys.com/klein

Also added:
- The 2D Loop as a helper explanation for the Klein bottle
- The "Spherinder Klein Bottle," a higher dimensional generalization of the Klein bottle.

Bug Fixes since 1.7:
- Fixed a bug where older devices would run out of memory loading the Klein Bottle. Any devices released before 2017 now loads a lower detail version instead. Email support@4dtoys.com with any issues.

### 1.7 — 2021-12-14

Added the Klein Bottle!

See the complementary explanation video: https://4dtoys.com/klein

Also added:
- The 2D Loop as a helper explanation for the Klein bottle
- The "Spherinder Klein Bottle," a 4D (5D?) generalization of the Klein bottle.

### 1.6 — 2020-12-15

New button: Wireframe Projections.

When enabled, the edges of objects are projected onto the current slice.

That means that no matter where the slice is, the edges of the objects will always be visible.

It's an "old school" way of displaying 4D objects which you may have seen before!

Try it in the 2D Levels!

I had fun going back to every level to check it out. It lets you see the movement of the objects even if you are not in the same slice.

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## Related topics

[4d toys](https://appshunter.io/ios/topics/4d-toys) · [the fourth dimension](https://appshunter.io/ios/topics/the-fourth-dimension)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*