Trazu - Paint, Sketch, Draw

Most painting apps aren't really painting: you drop a shape, fill it with a color, and move on. Nothing loads. Nothing depletes. Nothing mixes. Trazu rebuilds the part that matters. The brush carries a finite charge of paint that runs out as you drag it. Push into wet color already on the canvas and it lifts, smears, and mixes, the way a loaded filbert does through fresh oil. Press harder and the stroke widens; move faster and it thins and breaks. Real paint, real grain, no turpentine, no cleanup, no drying time. Nine mediums, each with its own real behavior: oil, watercolor, charcoal, chalk, pastel, ink, airbrush, a blending medium, and a basic medium. Twelve paper textures the paint actually catches on, from smooth and hot-press watercolor to canvas weave, kraft, and blueprint, plus a master's shelf of black pastel ground, laid Ingres, and terracotta paper. What no other paint app does: four study views built into the canvas itself — Value, Temperature, Saturation, Contrast — the same analysis lenses from Undertone (Paintingstack's color app), living inside your own work in progress. You diagnose your own painting while you paint it, not after it's too late to fix. Built for painters who want to practice without the setup, mess, and cleanup tax of real paint; art students who need to actually see value and temperature in their own work; sketchers and illustrators who want real media feel with no account and no cloud; and anyone returning to art who wants paint that just behaves like paint. Fully offline, no account, no sign-up, no ads, no cross-app tracking. Everything stays on-device. Runs on iPhone, iPad, Mac, and Android. Free to start: full paint engine, seven mediums, nine paper textures, save up to 10 drawings. Trazu Premium is a one-time purchase (no subscription): unlimited drawings, the four study views, transparent PNG export, six master brushes, and three master papers.