Sandbox Draw vs Space Particles

Sandbox Draw turns your iPhone into a tray of soft, sunlit sand. Drag a finger and the surface carves into a real groove with a shadow along its low edge — not a painted-on line. Press harder for a deeper groove. Press hard enough and the device responds with continuous haptic feedback that tracks your stroke. Dig deep enough and a colorful pattern bleeds through from underneath, different every session. Tap the refresh button to smooth the sand flat and start over with a brand-new color world below. Tap the share button at any moment to save or send your drawing. Features - Real-time pressure-sensitive sand drawing, 120 Hz on ProMotion devices - Haptic feedback on the hardest presses - A surprise of color revealed at the bottom of every deep groove - One-tap refresh, one-tap share to Photos, Messages, AirDrop, and more - No accounts, no ads, no data collection A small, quiet app. Draw, smooth, draw again.

Space Particles is a touch-driven visual sandbox for exploring motion, gravity, and light. Start with a live field of glowing particles, then shape it with gravity wells, repulsion, pulses, stir tools, vortices, and erase or freeze interactions. Switch between presets like spiral galaxies, binary systems, collisions, rings, streams, lattices, and nova-style bursts, or tune the simulation yourself. Particle Mode focuses on gravity-driven motion and emergent patterns. Firework Mode turns the same canvas into a configurable spark launcher with adjustable spread, trail length, gravity, drag, color, size, and lifetime. Built for quick experimentation: - Touch and drag directly on the canvas - Choose particle counts, speed, bounds, trails, colors, and visual themes - Toggle between performance and quality settings - Capture screenshots of scenes you create - Share scene links from the web version Space Particles is for anyone who likes visualizers, creative coding, particle systems, physics toys, generative art, or just watching a screen fill with organized chaos.