# Polyhedron and Polyhedra Vol.2 > Interactive 3D exploration of Kepler-Poinsot and uniform star polyhedra. (iPhone/iPad app by Masahiko Fukuyama.) - Source: https://appshunter.io/ios/app/polyhedron-and-polyhedra-vol2/id1073494585 (this page in markdown: same URL + `.md`) - Developer: [Masahiko Fukuyama](https://appshunter.io/developer/595177290) - Category: Education, Entertainment - Price: $2.99 - Rating: 4.33/5 from 3 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 5 MB - Languages: English, Japanese - Released: 2016-01-23 - Data updated: 2026-06-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/polyhedron-and-polyhedra-vol2/id1073494585/reviews.md ## What is Polyhedron and Polyhedra Vol.2? Polyhedron and Polyhedra Volume 2 is a collection of 4 kepler-poinsot polyhedra, 53 uniform star polyhedra, their duals and polyhedral compounds of them. This is also an application which helps you to learn about or explore these mathematical solids. Without knowledge of mathematics or polyhedron, you can easily interact with the 3d solids by this application. So, you will become more familiar with the polyhedrons, and you may enjoy these abstract solids as fascinating formative arts. The main advantage of this app is that it offers a large variety of polyhedral compounds of identical uniform star polyhedra and their duals. By choosing a model, and by setting colors and parameters optionally, you will find various types of 3d shapes including wonderful shapes, mysterious artistic shapes, and strange eccentric shapes, which will be interesting for you. Features: - Swipe or touch gesture will rotate, zoom or move the object. So, you can observe it from various angles or positions. (You can observe it even from inside.) - Switches between showing and hiding each face of the polyhedron, and switches between showing and hiding each component of the compound - Function to display the edges of the polyhedra with selectable thickness and color - For each kepler-poinsot polyhedron, each uniform star polyhedron and each dual of uniform star polyhedron, the app can provide the compound from 14 to 22 kinds (more than 1200 in total). - Many color patterns for the faces of the polyhedron. - Functions to display basic informations about the polyhedron, and to access the wikipedia sites about the related items - Slider controllers to reduce z-fighting (screen flicker) - Save PNG images to camera roll ## Key features - Interactive 3D model rotation, zoom, and pan - Toggle visibility of faces and components - Adjustable edge thickness and color - Extensive library of polyhedral compounds - Customizable face color patterns - Access to Wikipedia for related information - Save PNG images of models ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/polyhedron-and-polyhedra-vol2/id1073494585/reviews.md ### 4/5 — Oh pallets oh wireframe *2020-02-24* Five stars if you let me choose a palette from photo ...or include wireframe abilities or transparency ....otherwise a nice program.....too many star shapes though whatever that means ha ### 4/5 — Looks great but interface seems buggy *2018-02-02* Maybe I just need to spend more time figuring out the controls. tempted to buy your other polyhedron app ## Frequently asked questions about Polyhedron and Polyhedra Vol.2 ### What are Kepler-Poinsot polyhedra and uniform star polyhedra in Polyhedron and Polyhedra Vol.2? These are types of complex 3D geometric solids. The app provides a collection of 4 Kepler-Poinsot polyhedra, 53 uniform star polyhedra, their duals, and compounds, allowing for interactive exploration and learning. ### How can I interact with the 3D solids in Polyhedron and Polyhedra Vol.2? You can use simple swipe or touch gestures to rotate, zoom, or move the 3D objects. This allows you to observe them from various angles, even from the inside. ### Does Polyhedron and Polyhedra Vol.2 have ads? No, this application is ad-free, providing an uninterrupted learning and exploration experience. ### What devices does Polyhedron and Polyhedra Vol.2 support? Currently, Polyhedron and Polyhedra Vol.2 is supported on iPad devices. ### How often is Polyhedron and Polyhedra Vol.2 updated? The app was last updated on August 11, 2024, with version 1.1.4. This indicates regular maintenance and potential feature additions. ### Can I save my creations from Polyhedron and Polyhedra Vol.2? Yes, you can save PNG images of the polyhedra models directly to your camera roll, allowing you to share or keep your favorite visualizations. ### What is the age rating for Polyhedron and Polyhedra Vol.2? Polyhedron and Polyhedra Vol.2 has an age rating of 4+, making it suitable for a wide range of users interested in geometric exploration. ### Does Polyhedron and Polyhedra Vol.2 offer any certifications or formal learning paths? The app focuses on interactive exploration and learning through visualization rather than offering formal certifications or structured educational courses. ## Version history (last 5 releases) ### 1.1.4 — 2024-08-11 - Updates for latest iPadOS ### 1.1.3 — 2021-04-21 Updates for iPadOS ### 1.1.2 — 2019-07-30 - Added buttons for selecting the polyhedral compounds of chiral polyhedra. ### 1.1.1 — 2018-12-21 - Improved frame rate - Added specular lighting effect - Added light settings view - Other minor changes and fixes ### 1.0 — 2016-01-23 This update is signed with Apple’s latest signing certificate. No new features are included. ## Apps similar to Polyhedron and Polyhedra Vol.2 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Matrix-Analysis](https://appshunter.io/ios/app/matrix-analysis/id1619005601) | — | Free | Education | | [Baselproblem](https://appshunter.io/ios/app/baselproblem/id1484572342) | — | Free | Education | | [Derivative-Calculus Pro](https://appshunter.io/ios/app/derivative-calculus-pro/id1618965619) | — | $1.99 | Education | | [Modular Arithmetic](https://appshunter.io/ios/app/modular-arithmetic/id687735575) | 5.0 (4) | $1.99 | Education | | [I Like Shapes - Preschool Kids](https://appshunter.io/ios/app/i-like-shapes-preschool-kids/id1486052021) | 5.0 (1) | $0.99 | Education | | [Epicycles](https://appshunter.io/ios/app/epicycles/id6450433959) | 5.0 (2) | Free | Education | ## More apps by Masahiko Fukuyama - [SpiroDesigner - spirograph app](https://appshunter.io/ios/app/spirodesigner-spirograph-app/id595177167) - [Polyhedron and Polyhedra Vol.1](https://appshunter.io/ios/app/polyhedron-and-polyhedra-vol1/id1029485589) - [Distorted Kaleidoscope Art](https://appshunter.io/ios/app/distorted-kaleidoscope-art/id1407124554) All apps by Masahiko Fukuyama: https://appshunter.io/developer/595177290 --- *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 2026-06-01.*