Spiro Designs vs SpiroGraph Tool

Spiro Designs draws the patterns a small circle makes as it rolls around the inside of a large one. Stamp circles or polygons at every step, or let a single point leave a spirograph trail, then play with size, spacing, colour and blend mode until something beautiful appears. WHAT YOU CAN DO • Pick a shape: circles, a line, triangles, squares, all the way up to decagons, or a classic spirograph curve • Pinch the drawing to change size, drag sideways to change spacing, drag up and down for line weight • Choose fill, outline or both, with 23 named colours or random colours on every change • Combine overlapping colours with 20 blend modes, from Difference and Exclusion to Screen and Multiply • Even-odd fill turns overlapping shapes into lace and checkerboard patterns • Start from twelve curated presets, or roll a random design with one tap • Animate the design being drawn, and tap for a clean full-screen view • Undo and redo every change • Keep up to 50 named designs and reopen, update or rename them • Share as a high-resolution PNG, save to Photos, or export an SVG vector file for design apps, plotters and cutters No account, no ads, no tracking. Your designs stay on your device.

SpiroGraph Tool is a precision spirograph drawing instrument that brings the classic mathematical toy to your device. Create stunning geometric patterns based on real hypotrochoid and epitrochoid curve equations. Features: - Mathematical precision: Based on real spirograph mathematics with double-precision calculations - Infinite creativity: Adjust radius, ratio, offset parameters to generate billions of unique pattern combinations - 50+ classic presets: Rose curves, star patterns, mandala basics, traditional spirograph classics - Real-time preview: Instant visual feedback at 60fps as you adjust parameters - Drawing animation mode: Watch patterns come to life stroke by stroke - Export support: Save your creations as high-quality images - Gesture controls: Pinch to zoom, drag to pan, double-tap to reset Perfect for math enthusiasts, designers, artists, educators, and anyone who loves geometric beauty. Rediscover the joy of spirograph art in the digital age.