One Stroker
One-stroke drawing challenge
Free · Designed for iPad. Not verified for macOS.
One Stroker is a simple scoring app where you draw shapes in one stroke and receive a score based on beauty and accuracy.
Choose from circles, triangles, squares, stars, hexagons, and hearts, then draw the shape with your finger in one smooth stroke. When you lift your finger, your drawing is scored automatically.
The scoring system checks not only how similar your drawing looks, but also the features that make each shape recognizable. It evaluates straight lines, corner count, side balance, aspect ratio, star peaks and valleys, heart shape, and more.
After scoring, the correct neon shape appears over your drawing so you can intuitively see where your line matched and where it shifted.
Main features:
・ Draw shapes in one stroke
・ Score out of 100.0 with one decimal place
・ View shape-by-shape local records
・ Game Center leaderboards and achievements
・ Simple, modern neon-inspired design
A quick, simple, and surprisingly deep one-stroke challenge.
Draw a beautiful line and aim for a perfect 100.0.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.1 Update
○ Improved internal data handling
○ Updated the ranking display
→ Scores are now shown separately for each shape.
The developer, Katsuaki Mabushi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Katsuaki Mabushi
- Size
- 1.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Katsuaki Mabushi
