DevelopFilm: Darkroom Lab

The app that helps you develop film right, every time. Use proven recipes, experiment with your own settings, and rely on official development times from manufacturers.

Your pocket darkroom for black-and-white film.

DevelopFilm is a complete darkroom companion designed to help you develop film with confidence — whether it’s your first roll or your hundredth.

Official developing times: Access precise data from manufacturer datasheets for Adox, Bergger, Foma, Fujifilm, Ilford, Kentmere, Kodak, Rollei, and more. The library is continuously expanding.

Smart timer with agitation guidance: Run a clean dual-phase timer for developing and fixing, with built-in agitation reminders and visual alerts.

Full process control: Adjust by temperature, developer reuse, push/pull stops, processing vessel, fixer, stop bath, toners, and more — everything that affects your final look.

Built-in journal: Keep track of every roll. Save your film details, developing parameters, notes, and photos so you can repeat your best results or refine your workflow.

Quick Timer: Need flexibility? Set a custom time and start developing instantly.

Darkroom-ready design: A minimal, dark-mode interface that stays readable under safe lights and keeps you focused on the process.

Whether you’re new to film developing or refining your craft, DevelopFilm helps you stay consistent, learn faster, and enjoy every step of the process.

Upgrade to Darkroom Pass to unlock pro features like push/pull adjustments, fixer timer, and photo journaling.

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