A calm water tracker built around iPhone Duo.

Unfolded, the whole display is the pond.

A full-height waterline rises with every drink. One tap on a drink tile logs a cup, and the water moves to meet it.

Drink buttons sit along the bottom or down the side. Log in millilitres or fluid ounces.

Millpond Home on the unfolded iPhone Duo in portrait. A large 2.3 L total sits top left, a dark green waterline fills most of the tall display, and a row of drink tiles (Water, Bottle, Coffee, Tea and more) sits above a floating tab bar. Home rotated to landscape. The waterline spans the full width, each logged drink is labelled on the water, the drink tiles run along the bottom and the tab bar is a vertical pill on the right edge.

Fold it, and the water moves with you.

On the outer display the waterline stays, and the drink tiles stack down the side.

The Home Screen widget logs a cup in one tap without opening the app. It reads the same on any iPhone, and it stays readable while the phone is locked.

Home on the folded outer display. The waterline sits on the left, the drink tiles stack in a column down the right, and the tab bar is a vertical pill at the lower right. The folded Home Screen with the Millpond widget at top left showing 2.6 L of 3.5 L, 74% today, and a lily-pad button that logs 250 ml, beside the Millpond app icon.

Calm on purpose.

No streaks to break.

No pets that suffer.

No missed-day messages.

No ads to interrupt the calm.

See it move.

Two short clips: the folded display with the widget, launch and Home, then the unfolded display.

Folded. MP4
Unfolded. MP4

Millpond launches with iPhone Duo on 23 October.