Cyanotype: Blueprint Photo Lab

Cyanotype turns any photo into a blueprint print — the deep prussian-blue, sun-printed look of the world's first photographic process. One aesthetic, done perfectly. No subscription. No account. Works offline. Your photos never leave your device. Most filter apps do a hundred looks badly. Cyanotype does one look properly: a real duotone darkroom pipeline that maps your photo's tones between deep…