# Unfold — The Geometry of 3D Solids

> Interactive 3D geometric solids exploration app for iPad and iPhone. (iPhone/iPad app by Paul Hangas.)

- Source: https://appshunter.io/ios/app/unfold/id557099803 (this page in markdown: same URL + `.md`)
- Developer: [Paul Hangas](https://appshunter.io/developer/433121902)
- Category: Education
- Price: $0.99
- Rating: 4.20/5 from 46 App Store ratings · 31 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 1 MB
- Languages: French (France), German (Germany), American English, European Spanish, Italian, European Portuguese
- Released: 2012-09-18
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/unfold/id557099803/reviews.md

## What is Unfold?

Unfold brings the geometry of 3D solids to life on your iPad and iPhone in an elegant and intuitive way.  The artistic and mathematical beauty of these symmetrical forms has been studied for thousands of years, and now it is easier than ever to learn about these shapes.

• Beautiful and simple user interface
• 63 different shapes
   · Platonic Solids 
   · Archimedean Solids
   · Johnson Solids
   · Prisms
   · Rectangular Prisms
   · Antiprisms
• Rotate the solids to explore and learn about their shapes
• Pinch & Zoom to fold and unfold the solids
• Switch between 18 gorgeous colors

## Key features

- Interactive 3D solids
- 63 different geometric shapes
- Rotate and zoom functionality
- Fold and unfold solids
- 18 color options

## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/unfold/id557099803/reviews.md

### 5/5 — I love it

*2025-04-16*

shiny

### 5/5 — Just used it

*2023-01-16*

Haven’t used it but it’s great already.

### 5/5 — Piacevole

*2022-05-07, version 3.5*

App semplice e immediata per aiutare a conoscere i solidi.

### 4/5 — Très bien

*2021-07-14*

Esthétique et claire. Je regrette qu’il n’y ait pas la possibilité de transformer les polyèdres (troncature etc…)

### 5/5 — Excelente aplicativo

*2021-01-25*

Ótimo

### 5/5 — Unfold

*2020-10-29*

This app is a activady I enjoyed.l hope you like it to.

### 5/5 — Brilliant for the classroom

*2019-12-18, version 3.1*

Works great projected to the class.  Cannot praise enough

### 4/5 — Bello, ma occorre qualche aggiustamento

*2018-01-25, version 3.1*

Molto bello, ma qualche piccolo difetto:
 - È irritante l'entrata di un nuovo solido con caduta e rimbalzo.
- I colori disponibili oltre quello di default sono abbastanza brutti.
Per il resto ottima applicazione e speriamo di vedere presto gli altri solidi di Johnson

### 4/5 — Where are they?

*2017-08-24*

“More Johnson solids available in a future update.” — this app, 2 years ago.  It's now August 2017.

### 5/5 — Nice App

*2017-04-09, version 3.1*

Any chance of adding a cylinder in future updates?

## Frequently asked questions about Unfold

### What does the Unfold app do?

Unfold brings the geometry of 3D solids to life on your iPad and iPhone. It allows you to explore and learn about various symmetrical forms through an intuitive and elegant interface. You can interact with different shapes, rotate them, and even fold and unfold them to understand their construction.

### What types of 3D shapes are included in the app?

The app features 63 different geometric shapes, including Platonic Solids, Archimedean Solids, Johnson Solids, Prisms, Rectangular Prisms, and Antiprisms. This diverse collection offers a comprehensive exploration of symmetrical forms.

### How can I interact with the 3D solids?

You can rotate the solids to view them from all angles and learn about their shapes. The pinch and zoom functionality allows you to fold and unfold the solids, providing a deeper understanding of their construction. You can also switch between 18 different colors to customize the appearance of the shapes.

### Is Unfold a free app?

Yes, Unfold is a free application. There are no in-app purchases or advertisements mentioned, suggesting it is entirely free to use.

### What devices is Unfold compatible with?

Unfold is designed for use on iPads and iPhones. The description specifically mentions its availability on these Apple mobile devices.

## Version history (last 5 releases)

### 4.0 — 2025-08-25

• Updated for latest iOS and iPadOS
• Bug fixes for Dark Mode, and a few others

### 3.5 — 2020-04-20

Updated for latest iOS and devices.

### 3.1 — 2015-08-12

• Support for iOS 8
• Save an image to Photos by tapping the Save button

### 3.0 — 2013-10-28

• Optimized for iOS 7 and the new 64 bit A7 processor
• Shapes drop onto screen with gravity and bounce
• Parallax for three dimensional viewing by tilting the device
• Information button for additional details about the shape
• Share with Facebook, Twitter, Email, iMessage, and more
• Save and Print images
• Localized for English, French, German, Italian, Portuguese, Spanish

### 2.1 — 2013-04-06

• Added 21 Johnson Solids
• Added 8 Rectangular Prisms
• New Shape Picker for the 63 different shapes
• Brighter Colors
• Bug Fixes

## Apps similar to Unfold

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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## More apps by Paul Hangas

- [TapTapBlocks](https://appshunter.io/ios/app/taptapblocks/id433121899)
- [Think 3D Pro](https://appshunter.io/ios/app/think-3d-pro/id446608416)
- [Think 3D](https://appshunter.io/ios/app/think-3d/id463364378)
- [Prime Factors](https://appshunter.io/ios/app/prime-factors/id741746948)
- [Bottles - Wine Cellar Manager](https://appshunter.io/ios/app/bottles-wine-cellar-manager/id953817122)

All apps by Paul Hangas: https://appshunter.io/developer/433121902

## Related topics

[polyhedra](https://appshunter.io/ios/topics/polyhedra)

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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 2026-08-31.*