Spirale vs PaperDeveloper

Pair a black & white film and developer, pick a fixer and start developing. Spirale guides your sessions with clear timers, agitation cues, and reusable chemistry tracking. The data you need, organized around how development works — not around the database behind it. RECIPES. Your darkroom shelf. Spirale pairs each film and developer in one card, color-coded by packaging, so you spot them at a glance. Films, developers, fixers, all major brands are covered. • Reusable developers show batch usage and volume right on the card. • Long press on a recipe to rearrange or delete it. THE EDITOR. All the data, none of the noise. Fine-tune your development variables: target ISO, developer dilution, temperature compensation and agitation style for your chemistry. • See the roll count, mixing date and expiry date for reusable chemistry. • Tap the volume to see the dilution. • Pick from official Ilford, Kodak and Agfa agitation styles. • Add or remove optional steps. THE TIMER. Agitate with precision, leave nothing to chance. • Arcs around the clockface and dots on the progress bar mark each agitation cycle. • Sound, haptic, and text cues show what to do and when. • Tap the seconds hand or the dial to change the timer’s appearance. THE PROCESS. Make it yours. Your own times, recorded as you develop — tracked, averaged, and refined. The longer you use Spirale, the more it reflects how you work. The datasheet is where you start. Where you end up is yours.

PaperDeveloper is a precise darkroom timer for the full wet process of photographic paper. Set your paper, chemistry, dilution, temperature and volumes. The app sets accurate times based on manufacturer data. The built-in timer guides you through every step — developer, stop bath, fixer, wash, and optional toning. Track multiple papers and test strips at once, and save quick presets. KEY FEATURES • Timing for the full B&W paper wet process • Papers, chemistry, dilutions and temperatures • Multiple runs at once (paper + test strip) • Presets for quick setup • Chemical capacity / yield tracking • Red UI for darkroom use • Works offline — no account, no cloud Currently the app includes manufacturer materials from FOMA. In a future version we will add materials from manufacturers such as Ilford and ADOX. Important: the red interface helps in the darkroom, but PaperDeveloper is not a certified safelight. Please keep that in mind. Enlarge — don’t scan!