Toned, an iPhone darkroom app that models film negatives and paper

About

I am interested in simulating pyshical processes in software so i decided to build an iPhone app that simulates film negatives and paper. It models in 2 stages: scene light -> color negative -> print reflectance The negative uses per-dye-layer H&D curves and the paper also has its own response curves. If you've ever spent time in a real darkroom, I would really like you to try the app and share your opinions. App Store: https://apps.apple.com/app/id6799706160

Discovery history

1. Show HN

   Aug 26, 2026 · 1 observations