StampwellTHE SUM ALBUM

A SMALL COLLECTION. A CLEVER SUM.

Every stamp
has its place.

Gather a page of little birds.
Make every weighted total come home.

Watercolor kingfisher stampWatercolor robin stamp

Small circles = weightsBoxes = current / target

Tap: stamp → × empty → undecided
Arrows move · Enter cycles · F stamps · X marks empty · E clears