Silverlog Timer vs Agitate

Silverlog Timer is a purpose-built timer for darkroom film and print development, with agitation interval tracking and a red-only display mode for use under safelight conditions. HOW IT WORKS Pick a process, or build your own from steps that each have their own time and agitation interval. Start the timer and it runs through each step in turn, with clear visual and audio cues for each agitation cycle. Red mode switches every screen to a red-only display for print processing. FEATURES • Multi-step processes with a time and agitation interval for each step • Built-in templates for B&W, B&W stand development, C-41, E-6 and print development • Create and save your own processes • Agitation interval tracking with alerts • Red safelight display mode for print darkrooms • Audio alerts for agitation and completion • Countdown with progress through the whole process • Large, readable display • Works offline — no internet connection needed • Dark mode support USEFUL FOR • Black and white film development • C-41 and E-6 processing • Darkroom print development • Any timed chemical process with regular agitation Part of the Silverlog photography toolkit. No account required. No data collected.

A timer for developing film at home. Black and white, C-41 and E-6 in one app, entirely on your device. THE CLOCK IS THE TRUTH Most timers count down, and a counter can stop — when a call comes in, when the system reclaims memory, when the app is force quit. Agitate stores the moment your step ends, not the seconds left in it. A call, a reboot, a phone that ran flat and came back: on return it works out where you are from the clock. There is nothing that can freeze, because there is nothing counting. BUILT FOR A DARK ROOM • Safelight mode: red on true black, screen driven to its lowest brightness, and the Live Activity uses the same palette so nothing lights up behind your back • The whole screen is the button, so you can start the next bath blind, in gloves, with wet hands • Every agitation is a tap in your hand. Sound if you want it, and it plays through the silent switch • Large tabular figures that do not jitter, readable across the room • A segment chain that always shows where you are in the process THE DETAILS OTHER TIMERS GET WRONG • The drain is called ten seconds before time, as the makers specify. A timer that simply rings at nine minutes gives you nine minutes and fifteen seconds of development, every time • Nudge the running step by fifteen seconds, or re-read the thermometer mid-run and let only the remainder be recalculated — without abandoning the run • Agitation as published: four inversions in the first ten seconds of each minute is one maker's scheme, five to seven inversions every thirty seconds is another's. They are not interchangeable. Stand and semi-stand are here too, marked as the community methods they are • Time and temperature converted for black and white between 14 and 27 °C, in Celsius or Fahrenheit. Refused for C-41 and E-6, where deviation is a colour shift that no extra time repairs • Minimum concentrate counted per film, not per tank. A 500 ml tank holds two 35 mm films, so a highly diluted developer can be half short while looking fine EVERY TIME FROM A DATASHEET Hundreds of published combinations, searchable, each row naming the manufacturer document it was transcribed from. No scraped database, no crowd-sourced numbers of unknown origin. If a combination cannot be sourced, it is not in here — write it as a recipe of your own instead, which is unlimited and free. WARNINGS BEFORE YOU POUR Expiry, exhaustion, minimum quantity, re-use surcharge and temperature tolerance are all in the free version. A warning behind a paywall would make the free version dangerous, so none of them are. AGITATE PRO Free develops your film. Pro remembers. • A development journal: every finished run with the film, the recipe, the temperature you actually measured, the push, and your own note. Searchable • A chemistry ledger: bottles with mixing date, fill level and film count, so the app knows when a developer is out of life or out of capacity • Export of all of it, recipes included, as CSV and JSON Pro is a one-time purchase. Not a subscription, nothing renews. PRIVACY No account or sign-up. The free version loads advertising from Google over the network, and Agitate Pro removes it. Your recipes and your journal never leave your device. Agitate is independent and is not affiliated with, sponsored by or endorsed by any manufacturer of film, paper or chemistry. Product names are used only to identify which products a published time applies to. All trademarks are the property of their respective owners. TERMS AND PRIVACY Terms of Use (EULA): https://agitate-app.vercel.app/terms Apple's standard EULA also applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://agitate-app.vercel.app/privacy Recommendations for our other apps load online. Their views and taps are counted as daily totals, without personal profiles or user/device identifiers. See our privacy policy.