Observed arrival · 2026-10-21
Ondelu turns the iPhone screen into a fluid simulator
An upcoming iPhone app that says it simulates touch- and motion-responsive rheoscopic fluid, with optional color palettes and live wallpapers.
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$Paid
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- iPhone users drawn to tactile fluid visuals
- Worth noticing
- The page specifies five compute-shader passes per frame and warns that active use draws more power than a static screen.
Field notes
The page describes touch gestures for stirring or producing a ripple, while device tilt shifts pigments under gravity. It gives specific implementation claims—five compute-shader passes per frame and Navier-Stokes pressure solving—and cautions that active simulation uses more power than a static screen. Ondelu says the free version includes Graphite, with seven more palettes planned for a one-time Plus purchase.
Observed signals
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Editorial observations of this landing page, not a rating.
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◎NicheUnusually specific use
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