A vs Star Exploration
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Affine transformation for shape creation
- Translation, rotation, and scaling
- Gradient coloring
- Supports circles, rectangles, stars, polygons, and lines
- Iterative shape generation
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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.
Star Exploration
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1. About Star Exploration Star Exploration is a novel and interesting game of reasoning. The star map is divided into multiple star regions, some of which have a planet with a color of red, yellow, and blue. The purpose of the game is to gather three planets of different colors together through movement, and there is only one aggregated planet in each sector area divided from the center of the circle. 2. How to Play a. Move: Each planet can only move up to one step. The blue planet can move diagonally by one grid, the green planet can move left and right or up and down by one grid, and the red planet can move up, down, left and right by two grid. b. Zoom: Click the + - button to zoom in or out on the star map. Drag and drop star map in the blank space. c. Undo: click the UNDO button in the upper right corner. d. Hint: click the HINT button right above.
Screenshots
Verdict
The clearest difference is in-app purchases: A at none against Star Exploration's 1. Star Exploration's advantage is update cadence (every 10 months vs every 70 months). On price, ads, device support and iOS requirement 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
Both are free to download. Star Exploration sells 1 one-off in-app purchase. A asks for nothing beyond the download.
A ships an update every 70 months, Star Exploration every 10 months. The most recent releases landed on November 13, 2026 and November 8, 2026 respectively.
| Parameter | A | Star Exploration |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 70 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 24 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Johannes Dwiartanto | 振华 许 |
In-app purchases
A
No in-app purchases
Star Exploration
- Full Version$0.99









