Darkroom: Film Developing

Darkroom is an iPhone companion for developing film at home. Look up development times, mix your developer, and time development in one app. • Look up 16,000+ development recipes offline. Browse film by brand or search for a film, a developer, or both. Pick either one first to see which products have matching recipes. • Compare variations in one place. Each film and developer pair has a single entry. Open it to filter by dilution, exposure index (EI), temperature, and film format. • Keep your usual combinations handy. Save your favorite films, developers, and recipes. Pin recipes you use often, copy one to make your own version, or start from scratch. • Mix without mental math. Enter a dilution such as 1+50. Calculate the concentrate and water for a target volume, or start with the water you’ve already measured. • See the countdown at a glance. Load a timer from a recipe or set it manually. Get a local completion alert and see the remaining time on the Lock Screen and Dynamic Island on supported devices. Start a saved recipe’s timer from a Home Screen widget. Available in English and Simplified Chinese. No account required. Recipes and favorites work offline.