Shape Sketch vs Proref

Designed specifically for artists, illustrators, and art enthusiasts to help you master the art of shape simplification. Shape Sketch instantly transforms complex scenes into clear value structure diagrams, allowing you to observe how light influences form definition and enhance your painting and compositional reference skills. Core Features: ① Generate 2-5 step Notan compositions in real-time from camera preview with customizable colors ② Import and analyze images from your photo library ③ Customize precise threshold ranges and apply coloring to individual value levels ④ Desaturation and horizontal flip functions to assist compositional observation ⑤ Intuitive professional interface, and all processes completed offline on your device Use Cases: ① Composition studies and value planning before painting ② Shape analysis tool for visual art education ③ Reference for painting material collection, photography framing, and composition Support Email: hi@fuercat.com

Proref is where your references live while you draw — and where the finished piece goes afterwards. GATHER YOUR REFERENCES Drop everything you're looking at onto one huge canvas and arrange it into a board. Import from Photos, your camera, Files, a web link, the share sheet, or by dragging straight in from Safari. Zoom from 2% to 25,600%, so the board grows with the project. WORK BESIDE THEM Proref is built for Split View: your references on one side, your drawing app on the other. Sketch and annotate over them with Apple Pencil, with pressure. Tune brightness, contrast and saturation, or crop non-destructively — the original is always recoverable. A minimap shows where you are, and saved views jump you back to any spot in one tap. KEEP THE PIECE, AND THE LESSON When something's finished, keep it. Attach a piece to the board it came from, open it full screen, and see everything you've made on a dated timeline — as a gallery to swipe or a list to scan. Note what worked and what didn't while it's fresh, star the things to carry forward, and those notes sit in a pane on the board while you draw the next one. If you'd rather Proref stayed purely a reference app, turn the art journey off in Settings and it does. PRIVATE BY DEFAULT No accounts. No sign-in. No server. No tracking, no analytics, no ads. Your boards, your artworks and your critique notes stay on your device. FREE, WITH A ONE-TIME UNLOCK Proref is free to use with 2 boards, 10 images per board, 3 saved views, 5 finished artworks, and 3 focused critique notes per piece. Proref Pro removes those limits and unlocks every feature — a single one-time purchase, not a subscription. Buy it once and restore it on your other devices.