Comparison

A vs Polyhedron and Polyhedra Vol.1

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

A

Create unique geometric shapes through iterative affine transformations. Apply translations, rotations, and scaling to various objects with gradient coloring to generate visually interesting results.

Highlights
  • Affine transformation for shape creation
  • Translation, rotation, and scaling
  • Gradient coloring
  • Supports circles, rectangles, stars, polygons, and lines
  • Iterative shape generation
Read full description

This app allows you to create interesting shapes using affine transformation. Affine transformation can do translation, rotation and scaling on object's coordinate. We do iterations, and in each iteration we apply the affine transformation on the object (circle, rectangle, star, polygon or line), coloured in gradient. At the end, you may like the result. Have fun.

About

Polyhedron and Polyhedra Vol.1

Explore and learn about various 3D geometric shapes, including platonic and archimedean solids. Interact with morphing models, customize colors, and view them from any angle. Discover fascinating artistic and eccentric forms.

Highlights
  • Interactive 3D model rotation, zoom, and pan
  • Morphing between different polyhedra
  • Customizable face colors and edge thickness
  • Display of polyhedron components
  • Links to Wikipedia for related information
  • Save PNG images of models
Features
Read full description

Polyhedron and Polyhedra is an application which helps you to learn about or explore platonic solids, archimedean solids, catalan solids or polyhedral compounds. 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 the app is that it offers a large variety of polyhedral compounds with parameters and 3d morphing models between different polyhedra or compounds. 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 compounds - Function to display the edges of the polyhedra with selectable thickness and color - For each platonic solid, each archimedean solid or each catalan solid, the app can provide the compound from 14 to 20 kinds, and it can also provide the compounds which are consisting of two or more different polyhedra (more than 700 in total) - Morphing mode, in which you can change or morph one solid into another solid through a seamless transition - The app includes many color patterns for the faces of the polyhedron. - Functions to display basic informations about the polyhedron, and to open the wikipedia sites about the related items in Safari - Slider controllers to reduce z-fighting (screen flicker) - Save PNG images to camera roll

Screenshots

A4 screens

Verdict

The call

The clearest difference is price: A at Free against Polyhedron and Polyhedra Vol.1's $2.99. A also leads on rating (5.0 vs 4.8) and device support (3 vs 1). Polyhedron and Polyhedra Vol.1's advantage is update cadence (every 15 months vs every 70 months) and iOS requirement (13.0 vs 15.6). On review sentiment, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

A is free to download; Polyhedron and Polyhedra Vol.1 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

A holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

A ships an update every 70 months, Polyhedron and Polyhedra Vol.1 every 15 months. Both last shipped on November 1, 2026.

Scorecard6 real differences · 4 level
A versus Polyhedron and Polyhedra Vol.1: the parameters behind the verdict, then further details
ParameterAPolyhedron and Polyhedra Vol.1
PriceFree — better$2.99
Rating5.0 (2 ratings) — better4.8 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings24 — better
Update frequencyEvery 70 monthsEvery 15 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.613.0 — better
Further details — not scored
Size24 MB4 MB
Age rating4+4+
DeveloperJohannes DwiartantoMasahiko Fukuyama

Customer experience

A

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Polyhedron and Polyhedra Vol.1

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

A

No in-app purchases

None

Polyhedron and Polyhedra Vol.1

No in-app purchases

Questions

Is A free?
A is free to download, with no in-app purchases.
Is Polyhedron and Polyhedra Vol.1 free?
Polyhedron and Polyhedra Vol.1 costs $2.99, with no in-app purchases.
Which has better reviews, A or Polyhedron and Polyhedra Vol.1?
A is rated higher. A averages 5.0 out of 5 from 2 ratings, while Polyhedron and Polyhedra Vol.1 averages 4.8 from 4 ratings.
Do A or Polyhedron and Polyhedra Vol.1 have ads?
Neither A nor Polyhedron and Polyhedra Vol.1 shows ads.
Which is updated more often, A or Polyhedron and Polyhedra Vol.1?
A ships an update every 70 months, and Polyhedron and Polyhedra Vol.1 every 15 months. Most recently, A was updated on November 1, 2026 and Polyhedron and Polyhedra Vol.1 on November 1, 2026.

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