Mobile Darkroom — a RAW lab for iPhone and iPad

Field notes

Processing is presented as entirely local: the page says the app requires no account, cloud service, or tracking, while leaving the original image untouched. Its control set includes subject-aware and manually drawn masks, an undoable repair brush, and depth effects based on embedded maps or on-device estimation. The accompanying darkroom curriculum covers zone-system previsualization, dodge and burn, paper grades, and toning across ten chapters, using public-domain negatives from 1941/42.