Chronodev vs DarkroomLog

Transform your iPhone into an enlarger timer using Chronodev. Chronodev uses HomeKit-enabled wall plugs and lightbulbs to control your enlarger and safelights. Secondhand enlarger timers can be expensive and hard to find. This one costs the price of a wi-fi wall plug. - Control your enlarger and safelight with your iPhone or iPad - Expose prints accurately using the HomeKit-enabled timer - Manual enlarger control for focusing - Use the metronome for dodging and burning - Adjust times using EV stops - Automatically create test strips with incremental exposures, and keep track of exposure times using a handy graph - Automatically turn your safelight off when exposing/focusing - Voice control support for hands-free development - Safe to use in black and white darkrooms when using iOS's built-in red color filter A HomeKit-enabled wall plug and/or lightbulb is required to use all features of this app. Some features (like a basic timer and EV stop calculations) are available without a HomeKit-enabled device.

DarkroomLog is a session logger, film catalog, and chemistry tracker for analog darkroom photographers. Log every printing session with equipment details, exposure steps, and notes. Attach a photo of each print for your reference archive. Rate your best prints with up to three stars. SHARE YOUR WORK Generate a beautifully designed dark card for any print or film roll and share it directly to Instagram, Mastodon, or anywhere else. Print cards include the photo, name, rating, film roll, enlarger, lens, paper, developer, and exposure settings. Choose portrait or landscape layout before sharing. Film roll cards show the full development record: film stock, developer, camera, lens, notes, and print count. LIGHT TABLE Browse and catalog your film rolls in a dedicated tab. Record format (135 or 120), film stock, camera, lens, developer, and notes for every roll. Link rolls to individual prints to keep your workflow connected from film to paper. CHEMISTRY TRACKER Track every chemical batch you mix — developer, fixer, bleach, stabilizer, stop bath, or anything your process requires. Log the mixed date, capacity in rolls, and shelf life. Add a roll manually as you work, just like marking a tally on the bottle. A color-coded progress bar shows how exhausted or close to expiry each batch is at a glance. Search by name or notes. Works for any process — black-and-white, C-41, ECN-2, or alternative. DARKROOM TIMER The built-in timer counts seconds with an audible metronome tick. Shake, toss, or tap to restart. The screen dims automatically during exposure. Set multiple timed steps per print — each step signals with a bell when complete. FILM DEVELOPMENT TIMER A separate timer for outside the darkroom — white digits, normal brightness. Use it for development, stop bath, or fixing. Same shake and knock controls. A bell rings every minute as a reminder. WASH TIMER Start a background wash timer directly from a print. When the time is up, you receive a notification — even if the app is closed. Perfect for fiber-base paper that requires extended washing. EQUIPMENT LIBRARY Build a reference library of enlargers, lenses, papers, developers, cameras, and film stocks. Browse by category and select equipment quickly when logging a session or a roll. BACKUP & RESTORE Export all your sessions, prints, film rolls, equipment, and chemistry batches as a single JSON file. Restore on any device at any time. SETTINGS Toggle the metronome on or off. Switch to a dark interface regardless of system appearance. No account required. No ads. No tracking. All data stays on your device.