Darkroom Film Process Timer

Guide manual film processing with stage countdowns for develop, stop, fix, and wash. Includes B&W and C-41 reference presets, sound and vibration agitation cues, a custom B&W recipe with adjustable development time, and restoration of an active process after reopening the app.

IMPORTANT: Preset times are general references, not instructions for your film or chemistry. Always follow the film, chemical, and equipment manufacturers’ current directions and safety data. Verify temperature, ventilation, protective equipment, compatibility, and disposal. Never mix unknown chemicals. The app does not monitor temperature or chemical condition.

The app shows a banner ad. A rewarded ad adds one custom-recipe slot. The optional one-time remove_ads purchase hides banner ads and adds slots without a rewarded ad. Purchase restore is included.