Fluid you can touch.

Name: Vortex
Author: Vincent C. Mader

Vortex is a real fluid simulation running on your iPhone's GPU. Drag color through it with all your fingers and watch it curl into vortices.

Coming soon to the App Store For iPhone.

Vortex with the Ink look: cyan ink curling into vortices on a black background.

What Vortex does

Under your fingers

Every finger counts: Each finger stirs on its own. Fast strokes tear open vortices, slow ones draw fine threads.
Real physics: A Stable Fluids solver in Metal computes the flow frame by frame, up to 120 Hz on ProMotion iPhones.
Looks: Ink, Water and Neon are free. Fire, Lava and Plasma come with Pro.
Glow and shading: Bright ink glows, and shading gives the fluid depth.

To keep and to watch

Video and screenshots: Record a short video or capture the moment as an image, and share it right away.
Autopilot: Vortex keeps stirring on its own. Nice on a desk or next to the music.
Tilt: Tilt your iPhone and the fluid flows with it.
Microphone: Turn on the microphone and the loudness in the room drives the flow.

Nothing leaves your iPhone

Vortex needs no account, shows no ads and contains no tracking. Your settings and saved looks stay on your device. The microphone only measures loudness, nothing is recorded.

Vortex Pro

Pay once, no subscription.

The Fire, Lava and Plasma looks.
Vortex itself stays free, with no ads and no time limit.
Bought through Apple, unlocked on each of your devices with the same Apple Account.
With Family Sharing, your family gets Pro too, at no extra cost.