The Darkroom Lab Timer App is an advanced multi-phase timer designed for use with C-41, E-6, , ECN-2, RA-4 and B&W photographic processes.

Featuring up to 25 customizable steps, individual agitation sequences can be applied separately to each phase. The app includes handy Volume and Dilution Mixers as well as safelight simulation modes.

Designed for darkroom users who mainly develop color materials in trays, tanks or automated processors as well as advanced B&W users who require features such as individual step agitation or multiple configurable phases. The app uses a template system, so users are expected to be able to modify and enter their own data.