FilmDev: Darkroom Timer
Film develop timer & recipes
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
FilmDev is a darkroom-safe multi-stage timer built for home film developers — B&W and C-41, push/pull, and beyond.
■ Multi-stage auto-advance timer
Set up develop, stop, fix and wash stages once. FilmDev counts each stage down and auto-advances to the next — no fumbling for a stopwatch in the dark.
■ True darkroom-safe screen
Running timer screen is pure black with a deep red display only — no white pixels, no accidental flash. Fullscreen immersive, safe for your eyes and your film.
■ Haptic + beep agitation cues
Feel and hear when it's time to agitate — configurable haptic pulses and beep cues so you don't need to watch the screen.
■ Wall-clock accurate, even backgrounded
Timing is based on real elapsed time, not a fragile in-app counter — lock your phone or switch apps and the timer stays accurate when you come back.
■ Temperature compensation
Adjust develop time for your actual chemistry temperature using a standard B&W time-temp factor. A guide, not a guarantee — always verify against your own testing.
■ Your own recipe library
Build and save your own recipes — film stock, developer, dilution, temperature, and every stage. Starter recipes are included from manufacturer datasheets, clearly marked "verify before use." Your recipes, your times.
■ Develop log
Log every roll you develop — recipe used, film, developer, notes and a rating — so you can track what worked.
■ FilmDev Pro (one-time purchase)
Unlock unlimited recipes, remove ads, and export/import your recipe library as JSON. One-time purchase, no subscription.
■ 8 languages, private by design
No account, no cloud. Everything — recipes and logs — stays on your device.
Ratings & Reviews
- Export your development log as CSV (Pro)
- Advanced log stats: top films, top developers, average rating (Pro)
- Duplicate recipes from the menu
- Improved ad system and stability
- Dilution calculator: exact stock and water for your tank, multi-step chains included
- Share a recipe as a QR code, or scan one to import it
- Film fridge: track the stock you have on hand and what is nearing its expiry date
- Attach a scan of your negatives to any log entry (Pro)
- Chemical tracking: note when a bottle was opened and how many rolls it has taken, as a reminder to test it (Pro)
The developer, SEONYONG LEE, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SEONYONG LEE
- Size
- 101.9 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 9.0 or later.
- iPhone
- Languages
- English and Korean
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- FilmDev Pro $6.99
- Copyright
- © 2026 hedvion