A professional film developing timer designed for analog photography lovers.
With a community-driven database of film recipes and development parameters, hand-developing film has never been easier.
Whether you’re a beginner or a darkroom expert, Developer Timer helps you find the perfect process for your film.

1. Hundreds of film development recipes included
2. Fully customizable process steps, temperature, and chemistry
3. Precise timing and multi-step reminders
4. Supports Apple Watch – check your process at a glance
5. Supports Apple Vision Pro – immersive darkroom experience
6. Share and explore film recipes with a global community

Developer Timer — making every development precise and elegant.