Fold the valley and watch one volume of water find a different shoreline.
RiverFold is a quiet, simplified water model for exploring with a grown-up. Change the banks, position an island, try six experiments or explore freely with three water volumes. Discoveries and the current model stay on the device.
A grown-up arranges the model before the touch turn. Pause at any time; there is no speed contest or reward for closing further. Use only the water on the screen. Never put real water on a device.
On a non-folding iPhone, use the on-screen shape controls. No ads, in-app purchases, accounts or external data transmission.