DevClock

A calm, darkroom-friendly timer for black-and-white film development, with process steps, red mode, local alerts, and Live Activities.

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.