Tap zoom in 10x on a point Two-finger tap zoom out 10x Drag pan Pinch zoom smoothly
Mouse & keyboard
Click zoom in 10x on a point Shift-click zoom out 10x Cmd/Alt-click center on a point Drag pan Scroll zoom smoothly + / Enter zoom in - / Space / Esc zoom out Arrow keys pan C / Shift-C next / previous palette V next coloring style M find a mini Mandelbrot S save image K save a 4K image R reset ? toggle this help
Everything else is in the menu at the top right. Tap to close.
Safari on iPhone can't hide its toolbars for a web page.
For full screen, tap Share, then Add to Home Screen,
and open Mandelbrot from your home screen.