Remember folding a sheet of paper over wet paint, pressing it flat, and opening it to find a butterfly? Foldprint brings that back.
Paint on one half of the page. Fold it shut. Open it again, and whatever you painted has pressed across the crease as a mirror print.
On a foldable iPhone the fold is real: close your phone to press the paint, open it to see what came out. On any other iPhone, tap Fold.
No accounts, no ads, no data collected. Just paint and paper.