Grain Film Toolkit vs DevClock

grain. is a toolkit built for film photographers who want to work with intention. EXPOSURE CALCULATOR Use the Sunny 16 rule to calculate the correct aperture for any lighting condition. Enter your film ISO and shutter speed — grain. gives you the aperture instantly. Enable Reciprocity Correction for long exposures and let the app compensate for your film's reciprocity failure automatically. FILM ROLL TRACKER Log every roll you shoot. Track film stock, camera body, ISO, and frame count. Update each roll's status from Loaded to Exposed to Developed. Never lose track of what's in your camera or what's waiting to be developed. DARKROOM TIMER Choose a built-in development preset or build your own custom pipeline. The timer walks you through each step — developer, stop bath, fixer, wash — and alerts you when it's time to move on. Safelight Mode switches to a red-safe display so you can work in the dark without fogging your prints. LIGHT METER A built-in incident light meter using your iPhone camera to help you read the light before you shoot. Your photos are saved only on your device. grain. never uploads, shares, or stores your images anywhere.

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.