TumeKyouen
NOBORU ISHIKURA Games iPhoneiPadiPod touch
TumeKyouen is a free Games app for iPhone and iPad by NOBORU ISHIKURA. Rated 5.0/5 from 1 ratings. Requires iOS 15.0. Updated May 31, 2026.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 31 MB
- Age 4+
- Updated
- May 31
- 2026 · v4.1.3
Screenshots
About TumeKyouen
Kyouen (共円) is a geometric concept describing four or more points that all lie on a single circle. "Tsume Kyouen" is a puzzle game where you find the combination of stones that satisfies this condition. Select four stones from those placed on the board and find the "kyouen" — the arrangement where all four lie on a common circle. The rules are straightforward, but as the board grows more complex, spatial reasoning becomes essential. Features - A mathematical puzzle grounded in geometry - Over 10,000 stages with varied challenges - A clean design that keeps the focus on the puzzle - Save and sync your progress with account sign-in Great for fans of mathematics, geometry, or logic-based puzzles.
What’s new
Version 4.1.3 · Updated May 31, 2026
Added a hint feature. You can now get hints for difficult stages by watching an ad.
App privacy
The developer, NOBORU ISHIKURA, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Contact Info: Other User Contact Info
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Contact Info: Other User Contact Info
- Identifiers: Device ID, User ID
- Usage Data: Advertising Data, Other Usage Data
- User Content: Gameplay Content
- Diagnostics: Crash Data
Used for: Third-Party Advertising, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Diagnostics: Performance Data, Other Diagnostic Data
Used for: Analytics, App Functionality
Alternatives to TumeKyouen
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