About
This logic puzzle game challenges you to place black triangles on a grid to form rectangles. Solve hundreds of pages across multiple chapters, with adjustable difficulty and helpful hints. Enjoy a relaxing, ad-free experience with a focus on accessibility.
What's New in Paper Corners
1.5
October 30, 2026
- Adds support for iPhone Duo. - Adds a free daily page for everyone and keeps unfinished pages playable after midnight. - Adds zoom with Undo and Redo to campaign and notebook pages. - Adds shortcuts to your notebook and compositions. - Improves notebook controls and completed challenge pages. - Improves Pro access recovery and adds support reports in Settings.
MoreSubscriptions & In-App Purchases
$4.99
Paper Corners Pro
More pages and the daily archive
Developer apps
FAQ
What is Paper Corners?
Paper Corners is a logic puzzle game where you place black triangles on a grid to form rectangles. The game offers 222 pages across 22 chapters, with adjustable difficulty and an offline mode.
How do I play Paper Corners?
You place black triangles in a grid until every white region forms a rectangle. Numbered squares indicate how many neighboring squares need triangles. The game includes an introduction and optional technique lessons.
Is Paper Corners free to play?
Yes, the original 102 pages, today's daily page, and your personal notebook are free. Additional content and features are available through a one-time purchase of Paper Corners Pro.
Does Paper Corners have ads?
No, Paper Corners is ad-free. The game is designed for a relaxing experience without interruptions from advertisements.
Can I play Paper Corners offline?
Yes, Paper Corners can be played offline on iPhone, iPhone Duo, and iPad. There are no timers, lives, or scores to worry about.
What devices does Paper Corners support?
Paper Corners supports iPhone, iPhone Duo, and iPad. It also has compatibility with Mac devices.
How often is Paper Corners updated?
The latest version is 1.5, last updated on October 30, 2026. Future additions are planned for Paper Corners Pro.
What is the age rating for Paper Corners?
Paper Corners has an age rating of 4+. The game's accessible design also includes support for VoiceOver, Reduce Motion, and Increase Contrast.
