Crane Leaf Folds

Every origami diagram in Crane Leaf Folds is computed, not stored as a picture. A model is a list of fold operations, and a folding engine clips the paper outline along each crease line and reflects the travelling part - so the shape you see at step N is worked out live, crease by crease.

Press Fold and the flap rotates around the crease in real time. You watch the motion between two steps instead of guessing at it from two still pictures, then step back and forth as often as you like.

WHAT IS INSIDE
- 24 traditional models - cup, boat, dart, crane, frog, heart and more
- Sorted into simple, steady and patient, so you can pick by how much patience a model asks for
- Every model carries a still preview drawn from its own finished geometry
- Diagrams drawn by a folding engine, so the shape at each step is exact

PROPER NOTATION, EVERY TIME
Standard origami notation is drawn on every step: dashed valley lines, dash-dot mountain lines, vermilion direction arrows and pale existing creases. A full symbol glossary explains valley, mountain, hidden edge, turn over and repeat - plus how to cut a square from a rectangle using folds alone.

CHECKED BEFORE YOU SEE IT
Every authored model is validated fold by fold when the app launches. If a crease would miss the paper, that model is hidden rather than shown wrong. Nothing on the shelf is a broken diagram.

IT REMEMBERS WHERE YOU WERE
Your progress, the step you stopped on and nine paper award marks are stored on the device and survive a restart. Close the app mid-crane and come back to the same step.

FIVE SECTIONS
Fold, Models, Symbols, How and Awards.

QUIET BY DESIGN
Works with no connection at all. No internet, no ads, no sound, and it asks for no permissions. Just paper, creases and the next step.