Sketchbook Studio vs ParticleFluid

Sketchbook Studio is a natural drawing studio made for iPad and Apple Pencil. Sketch, paint, and illustrate with pressure-sensitive brushes, then bring your art into the real world with AR. FEATURES - Brushes: pen, pencil, marker, crayon, fountain, monoline and watercolor - Adjustable brush size and a full color picker with opacity - Color fill (paint bucket) and a precise eraser - Layers: add, duplicate, reorder, lock, hide and blend with per-layer opacity - Ruler for clean straight lines - Symmetry guides: vertical, horizontal and 4-way kaleidoscope - Filter effects: mono, sepia, vibrant, invert, comic and soft blur - Page templates: blank, ring file, ruled, grid, dot grid, isometric, storyboard and music staff - Learn by tracing: import a photo as an adjustable-opacity reference overlay - Apple Pencil with palm rejection - Place your finished sketch into the real world as an AR effect - Your sketches are saved on your device Whether you are sketching ideas, studying from references, designing characters or just doodling, Sketchbook Studio gives you a fast, natural canvas on iPad.

ParticleFluid is an interactive 2D fluid simulation that lets you swipe across the screen to apply force to a velocity field and watch particles flow in real time. Adjust the particle count, swipe sensitivity, and viscosity to explore fluid-like motion. Its minimal interface keeps the focus on the particles and their movement.