DevProCo vs myDarkroom

DevProCo is a precise development process timer for analog photographers — whether you're developing B&W film, color negative (C-41), slide film (E-6), or darkroom prints (RA-4). FEATURES • Guided step-by-step development sessions with automatic agitation reminders • Text-to-speech announces each step and agitation — keep your hands in the tank • Automatic chemistry volume and dilution calculator • Built-in process library with pre-configured recipes (Rodinal, DD-X, C-41, RA-4) • Create and save your own custom processes • Share processes with other DevProCo users via QR code • Screen stays on during active sessions • Supports English, German, Spanish and French

myDarkroom is your companion in the black-and-white darkroom, from your first development session to the routines you’ve refined over the years. Organize your recipes and follow every stage of spiral-tank film development and manual photographic paper processing. Choose a recipe, review its settings, and get started. The timer shows the current step, the time remaining, and when to agitate, so you can focus on the process. Create and customize your own recipes, save your favorites, and use the calculators to prepare dilutions and estimate time adjustments. For paper processing, keep track of several prints at once and follow each print’s progress. Once a print reaches the washing stage, you can add a photo to identify it. For film development, enable notifications outside the app to receive guidance while it’s running in the background. Notification permission is required. No account or sign-in needed. Your recipes and sessions are stored on your device. Export your recipes to a file to keep a backup or transfer them to another device. Restoring replaces the existing recipe collection; active sessions and their photos are preserved. myDarkroom is free. If you wish, you can support its development with a small contribution through the app.