Spin Brush vs Vesica Studio

“Spin Brush” is a drawing app that combines freehand sketching with dynamic swing-based creation. You can doodle freely on a rotating canvas, or generate complex patterns through the automatic swinging of multiple editable line segments. The app supports independent adjustment of each segment’s color, speed, and thickness, making it ideal for quickly creating decorative motifs, creative sketches, and rhythm-driven visual artworks.

Vesica Studio is a precision drawing tool for sacred geometry, mandalas, and geometric art. Built for artists, designers, and anyone drawn to the beauty of mathematical pattern, it combines real-time symmetry engines with an intuitive, distraction-free interface. DRAW WITH SYMMETRY Draw once and watch your strokes echo across the canvas in real time. Choose from radial symmetry (2-fold to 24-fold, perfect for mandalas and rose windows), reflective symmetry (mirror your lines across any axis for kaleidoscopic effects), or wallpaper symmetry (tile your strokes across 17 wallpaper groups for seamless repeat patterns). Every brush stroke, every pressure variation, every tilt of the Apple Pencil is mirrored instantly. The symmetry follows your hand with no lag and no delay. TRANSFORM YOUR CANVAS Apply real-time transforms to any drawing and watch your work evolve into something entirely new. Kaleidoscope mode reflects and rotates your canvas into mesmerizing crystalline patterns. Spiral mode warps your drawing into logarithmic spirals, Fibonacci curves, and vortex forms. Wallpaper mode tiles your artwork into seamless repeating patterns. Each transform lets you adjust position with precise X/Y sliders, fine-tune zoom and rotation, and dial in the exact look. Reposition the effect anywhere on your canvas until it clicks. BUILT FOR REAL ARTISTS Apple Pencil is fully supported with pressure and tilt sensitivity for natural line variation. Press lightly for faint whispers, dig in for bold strokes. Unlimited undo lets you experiment without fear, every mark can be reversed. Export your finished work at full resolution, ready for prints, wallpapers, tattoos, and digital art. The dark interface stays out of your way so your geometry takes center stage. Works on both iPhone and iPad in all orientations. SACRED GEOMETRY, MODERN TOOLS From the Flower of Life to Metatron's Cube, from Gothic rose windows to Islamic tessellations, geometric pattern has been humanity's universal visual language for thousands of years. Vesica Studio gives you the precision tools to explore these patterns, whether you're a tattoo artist designing a sleeve, a graphic designer creating branding, or a meditator drawing mandalas for stillness. The app is named after the Vesica Piscis, the almond-shaped intersection of two circles, the seed from which the Flower of Life grows. It's the simplest sacred geometry form, and the beginning of everything you can create here. PRIVATE BY DESIGN No accounts. No sign-in. No analytics. No ads. No tracking. No network calls. Your drawings stay on your device. Your data is yours. Vesica Studio is a tool, not a service, and tools don't need to know who you are. WHAT YOU CAN CREATE Mandalas and meditation art. Tattoo designs and flash sheets. Logo concepts and brand marks. Wallpaper and repeat patterns. Sacred geometry studies. Coloring book pages. Geometric illustrations. FROM OUR USERS "A meditation in geometry. I lose hours in this app." "Finally, a sacred geometry tool that actually feels like drawing, not CAD." "My go-to for mandala designs. The symmetry is flawless." TECH SPECS Built with Capacitor 8 (native WKWebView). Optimized for iOS 15.0 and later. Supports iPhone and iPad, all orientations. Apple Pencil 1st and 2nd generation. Requires iOS 15.0 or later. Download Vesica Studio and start drawing the patterns that connect us all. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/