Darkroom Toolkit vs DevLog Darkroom

Process film and print in the darkroom, without the math. Darkroom Toolkit is a reference library and set of utilities for film processing and darkroom printing. Browse hundreds of photochemistry formulas, run step-by-step development timers with official manufacturer dev times, and handle common calculations – all in one app. WHY DARKROOM TOOLKIT? • One app instead of separate dev chart, formula, and printing calculator apps • Primary features are free: all darkroom chemistry formulas, official processes, and calculators included • Lifetime Pro unlock for saving favorites, custom workflows, and to support the project FILM DEVELOPING • Pre-configured timers for manufacturer-recommended film + developer combinations • Multi-step processing with optional audio alerts • iOS Live Activity: see your timer on the lock screen • Low light / safelight theme for working in the dark FORMULAS & CHEMISTRY • Extensive darkroom cookbook: developers, toners, lith, alt process, and more • Enter your target volume and every ingredient amount scales automatically • Dilution and solution strength conversion utilities DARKROOM PRINTING • f-Stop printing calculator: exposure sequences and test strip times • Print resizing calculator: new exposure times when changing print size PRO FEATURES (one-time purchase) • Save favorite processes and formulas • Create and edit custom recipes and processing timers • Sync your workflows across devices Whether you're developing your first roll of black and white film, mixing chemistry for cyanotype, or dialing in enlarger exposures, Darkroom Toolkit keeps you consistent. Download free. Upgrade once, yours forever.

DevLog is the all-in-one companion for film photographers who develop at home. Track every roll through its entire lifecycle, save the exact development recipe you used, log each frame's exposure data, and review your shooting and developing stats — all in one focused, offline app. From loading a fresh roll into your camera to archiving the final scans, DevLog keeps your analog workflow organized and repeatable. KEY FEATURES • Roll Lifecycle Timeline — Follow each roll through seven stages: loaded, shooting, shot, developing, developed, scanning, and archived, each with its own timestamp. • Development Recipes — Save your developer, dilution, temperature, time, agitation method, stop bath, fixer, wash, and a personal rating for every roll so you can reproduce your best results. • Frame Log — Record shutter speed, aperture, subject, and location for individual frames, so you never forget the shot. • Built-in Presets — Choose from a curated library of popular film stocks, developers, cameras, and lenses to fill in details fast. • Statistics — See your total rolls, rolls in progress, archived rolls, average development time, most-used film and developer, and a breakdown by film type. • 100% Offline & Private — No account, no network, no tracking. Everything stays on your device. Keep your darkroom knowledge in one place, roll after roll.