Intersect Studio vs Proref

Intersect Studio is a reference and study tool for understanding how 3D forms meet, overlap, and define structure. Build geometric scenes, visualize intersections, and explore structure through outlines, lighting, and perspective. Capture precise visual references for drawing, design, or spatial study. FEATURES Intersections See exactly where forms meet with precise intersection lines. Toggle visibility, adjust thickness, and control whether occluded intersections are shown. Structure and Outlines Show clean outlines around forms. Enable see-through rendering to reveal internal edges and understand complex geometry. Lighting and Shadows Adjust light direction with a sky-dome interface. Control intensity and enable shadows for added depth and realism. Perspective Control Smoothly transition from orthographic to wide-angle to telephoto views. Frame your scene from any angle. Precise Transforms Move, rotate, and scale with axis handles or scrubbing controls. Enable snapping for exact measurements in world or local space. Shapes and Scenes Start with six basic shapes: planes, cubes, spheres, cylinders, cones, and pyramids. Combine them to create complex arrangements. Save and Export Save scenes and build your own reference library. Export high-quality PNG images directly to your Photos library. Workspace Customization Toggle procedural sky, infinite ground grid, and coordinate axes. Adjust your environment to focus on what matters. Full History Undo and redo support for all transforms, additions, and deletions. Work confidently knowing you can always go back. --- Start exploring today! Terms of Use: https://intersectstudio.app/terms Privacy Policy: https://intersectstudio.app/privacy

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.