DevProCo – Film Dev Timer

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Everyone
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About this app

DevProCo is a precise development process timer for analog photographers — whether you're developing B&W film, color negative (C-41), slide film (E-6), or darkroom prints (RA-4).

FEATURES
• Guided step-by-step development sessions with automatic agitation reminders
• Text-to-speech announces each step and agitation — keep your hands in the tank
• Hands-free voice control: say "next" to advance steps
• Automatic chemistry volume and dilution calculator
• Built-in process library with pre-configured recipes (Rodinal, DD-X, C-41, RA-4)
• Create and save your own custom processes
• Share processes with other DevProCo users via QR code
• Screen stays on during active sessions
• Supports English, German, Spanish and French
Updated on
May 31, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 5 others
Data is encrypted in transit
You can request that data be deleted

What’s new

Initial release.
Content rating
Everyone
In-App Purchases
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App support

About the developer
Christoph Kretschmer
kretschmer@synthscript.de
Hornisgrindestr. 9 77855 Achern Germany
+49 7841 6274400

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