DevGlass

Development database

A built-in reference you can search by format and film.

• 308 films, 190 developers and 11,849 recipes
• Filter by 35mm / 120 / sheet film; pick a film and ISO to get the development time and dilution
• Most combinations include push / pull times

Multi-step development timer

Run the whole process in one go: pre-soak → develop → stop → fix → wash aid → wash → wetting agent.

• Toggle each step on or off and adjust its duration
• Sound and haptic prompts at every step
• Live progress on the lock screen and Dynamic Island
• The screen stays awake while timing

Colour processing: C-41 / E-6

Built-in standard timings and process guides, including home kits such as three-bath Blix, with handling for temperature and continuous agitation.

Agitation reminders

Four schemes — standard, continuous, minimal and custom — with sound and vibration when it's time.

Compensation calculations

Temperature compensation (the Ilford formula), reciprocity and rotary-processing compensation, giving you the adjusted development time automatically.

Dilution calculator

Mix quickly from concentrate and water.

• Built-in tank capacities for Paterson, Jobo, AP Compact and more
• Also supports custom volumes and any dilution ratio

Favourites, log and statistics

Keep your regulars close, and look back on your darkroom year.

• Favourite the recipes you use often
• Log film, developer, time, temperature, roll count and notes
• Export the log as CSV
• Charts and a yearly review of your darkroom footprint

Chemical management

Record opening dates and shelf life, with a reminder to replace chemistry before it expires.

Designed for the darkroom

Built to be used with wet hands under a safelight.

• Light / dark / red safelight themes
• A full-screen, large-type countdown
• A developing-tank guide
• Full backup and restore of your data (logs, favourites, chemistry)
• Six languages: English, Simplified Chinese, Traditional Chinese, Japanese, German and French