Darkroom Companion vs DevClock

Free film developing times and a multi-step darkroom timer for black-and-white film. Built-in development chart for common film and developer combinations, dilution calculator, reciprocity calculator and a red night mode. No subscription, no ads. Whether you are developing your first roll or your thousandth, it keeps the whole process in one place. FREE — NO SUBSCRIPTION, NO ADS • Multi-step timer — developer, stop bath, fixer, wash, wetting agent — with sound and haptic agitation cues • Night (red) mode that preserves your dark adaptation • Development time calculator for bath temperature and push/pull (± stops) • Built-in database of times for common film and developer combinations • Dilution calculator — how much concentrate, how much water • Celsius or Fahrenheit, whichever you think in • Reciprocity calculator for long exposures • One custom recipe and the last three developments in the log DARKROOM PRO — one-time unlock, no subscription • Unlimited custom recipes and custom process steps • Chemistry log — tracks expiry and exhaustion, warns you before you pour dead fixer • Unlimited development history • Data export and import Times are indicative. Verify them against the manufacturer datasheet before real use — the app reminds you as well. PRIVACY The app collects only anonymous usage statistics — which screens are opened and which features are used — so it can be improved. It does not send your recipes, log, notes or anything else you type into it, and it uses no advertising identifiers.

DevClock is a focused darkroom companion for black-and-white film work. Build quick timers, follow film development steps, and keep your process readable in low light. DevClock is designed for practical darkroom use: large controls, high-contrast timing screens, red mode, local notifications, haptics, and Live Activities for supported iOS devices. Key features: • Quick Timer for simple countdowns • Film and developer setup for black-and-white workflows • Guided process timing for develop, stop, fix, and wash steps • Red mode for darkroom-friendly viewing • Local notifications and haptic reminders • Live Activities for timer status on supported devices • Custom process plans • English, Simplified Chinese, Traditional Chinese, and Japanese interface options Important note: built-in development times are intended as useful starting points, not guaranteed processing instructions. Always confirm critical film, developer, temperature, and agitation choices against your own workflow and official manufacturer guidance. DevClock is local-first. It does not require an account, does not use analytics, does not include ads, and does not track you.