T vs Proref

T-Sketch is an infinite canvas for sketching, drawing, and real-time collaboration. Think, plan, and create with your team on one shared canvas—whether you brainstorm on iPad or join from the web. DRAW FREELY • Infinite canvas — pan, zoom, and never run out of space. Your ideas can grow without limits. • Natural drawing — pens, brushes, and effects that respond to pressure and tilt. Use Apple Pencil for precise strokes. • Rich content — freehand strokes, lines and arrows, rich text, images, and searchable symbols on the same canvas. • Editable objects — move, resize, rotate, and recolor anything without redrawing. Iterate non-destructively. COLLABORATE IN REAL TIME • Work together — multiple people can draw and edit at the same time. See live cursors and changes as they happen. • Share by link — send a viewer or editor link so others can open the sketch in the app or in the browser. No account required for viewers. • Teams and projects — organize sketches in teams and projects. Control who has access. PRESENT AND EXPORT • Slides from your canvas — turn areas of your sketch into slides and present fullscreen. Sketch live during meetings or teaching. • Export — save as PNG images or export a full archive with all attachments for backup or sharing. MADE FOR CREATORS AND TEAMS • Cross-platform — use T-Sketch on iPad, on the web (Windows, Mac, Linux), or both. Same canvas, same collaboration. • Light and dark mode — the interface adapts to your canvas. Choose light, dark, or auto based on your background. • Optional Pro plan — free plan includes 1 project, 3 sketches, and 5 collaborators per sketch. Tronor Pro unlocks unlimited projects, sketches, and more collaborators. T-Sketch is built for visual thinking: brainstorming, system design, teaching, and creative exploration. Draw the way you think.

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.