Film Developer Pro

682 reviews
Content rating
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About this app

This is the ultimate app for your film developments.

This darkroom timer contains the world's largest database of B&W film development times recommended by the manufacturers.

★ A comprehensive database of film processing times is backing this app. It consists of the authentic development times from the product sheet tables of the respective producers.
★ The film processing time calculator estimates missing entries of the database with respect to push/pull, dilution, temperature and agitation.
★ A timer is included in the app. In addition to the developer timer you can define timers for presoak, stop bath and/or fixing.

★★★ The features are ★★★

- 48234 database entries.
- 327 films, 300 developers supported.
- Calculator for film processing times of missing entries.
- Support for two-bath developer
- Online community database.
- Forum for user interaction
- All times are manually adjustable.
- Agitation reminder.
- Customizable timers with sound notification
- Dilution calculator
- Automatic filing of developed films with date and time.
- Darkroom themes.
- Storing and recalling of your favorite development settings.

Darkroom Timer / Film Developing Timer
Updated on
Mar 10, 2023

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
App activity
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

625 reviews
John Gelnaw
June 4, 2020
Good app, overall. The flexibility to create a fully customized chain of steps is fantastic. One request would be to have it pop up a message that it can't find a valid time for a given combination of developer + film. As it is, the app sits there, showing you a blank timer, and refusing to allow you to save as a favorite, with no explanation. Worse, if you rearrange the process to add a pre-soak step before the main timer (which is great that you can!), then the developer timer crashes out leaving you staring at a useless screen while trying to remember how many seconds it's been, and trying desperately to sync up to a digital clock nearby while you switch over to a stopwatch app and try to get it sync'd to the nearest 30 seconds. So a validation check on each step of the process would be helpful. :)
8 people found this review helpful
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Darkroom Solutions
June 11, 2020
Thank you very much for the good description of the bug. I've fixed the issue in the new version of the app.
caos one
November 23, 2021
Works perfectly well for me. All the films and my go to developer are in the database, times and calculations have worked out perfectly well. The added liquid mixing calculator is super helpful if too lazy to do it myself. Yes, you have to get used to some of the interface, but after a quick period of getting familiar with everything I have no problems with setting up my process and can quickly go from black and white to colour chemistry. Overall does exactly what I hoped it would do.
2 people found this review helpful
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A Google user
June 25, 2019
User Interface is a bit clunky and not that intuitive but the app does a good job once you get used to it. A button to reset all search-parameters at once - like developer/ ASA / agitation rhythm etc. - would be nice. Right now you have to reset every value yourself, because the grey checkmarks only help if you type in the parameters in a specific order. A simple way to reset the values would earn the app the 5th star. Nevertheless, definitely the best app out there.
4 people found this review helpful
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Darkroom Solutions
June 26, 2019
Thank you for the review. If all parameters selected and you switch one of them than the checkmarks show you if there's a time in the database, regardless of the order you typed in the parameters. If at least one parameter is not selected and you switch another one, the checkmarks may not be reliable. However, resetting all params is a good idea.

What's new

Bug fixes and improvements