Published by Digitaltruth Photo Ltd

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About Darkroom Lab Timer

1. The Darkroom Lab Timer App is an advanced multi-phase timer designed for use with C-41, E-6, RA-4 and B&W photographic processes.

Darkroom Lab Timer Customer Insights

1. Two requests that I would ask to be implemented are the ability to set the app to default to safelight mode right off the bat at all times (it goes back to white light mode whenever I reset the timer which I find annoying) and the ability to time multiple prints since I generally would like to move onto another print while a previous print is final washing.

2. Simple to use and works smoothly.It's a great app for standard film developing but I can't figure out how to make it work with stand or semi-stand development timesPlease create a setting that will default the whole app to red mode (for this and massive dev).

3. App is great, works just as well as the DevChart, but the timer has a slim white bar at the bottom of the screen even when switched to a safelight mode.

4. As long as you work around those issues, it's really a great app and it's made my workflow in the darkroom much simpler.Revolutionary! Been looking for something like this as it's sometimes tough to keep a hold of agitation times and in general organise the process.

5. The issue also happens if the the export file is manually edited and imported, the first 13 entries are correct and entries 14 and up are duplicates starting from entry 1.Unfortunately this is probably the best photo development timer out there.

6. Editing and saving one of the templates appears to work ok until it is saved and closed, as it is not added to the MyTimes list, the first entry is duplicated at the end of the list hence just 3 stars.

7. Stress free development.Great app and I would give it 5 stars, however I have issues with saving MyTimes: when I attempt to add my 14 entry.

8. I've gone from writing down in a notebook the exact minute and second I need to start and stop agitating to just having the app telling me exactly what to do with the timer and countdown feature.

9. This white bar produces ambient white light in the darkroom and must be covered with a piece of tape if you're using it near your enlarger.

10. I just have to press the red light mode button for each print I process.

11. At first, I was worried that the red light mode would still fog my paper.

Steps to Troubleshoot & Fix Darkroom Lab Timer Issues

1. Fix Darkroom Lab Timer Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Darkroom Lab Timer: Restarting the app will resolve most errors.
  2. Update the Darkroom Lab Timer App. Here is how:
    1. On Android goto PlayStore » Search for "Darkroom Lab Timer" » Open Darkroom Lab Timer » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Darkroom Lab Timer » click "UPDATE".
  3. Clear Darkroom Lab Timer app cache: Clearing cached data will force your app to retrieve the latest data directly from Darkroom Lab Timer servers.
    1. On Android, goto Settings » Apps » Select "Darkroom Lab Timer" » click Storage » click "Clear Cache".
  4. Check Darkroom Lab Timer app permissions. If any of these permissions required to use your device's features are disenabled, Darkroom Lab Timer might not work.
  5. Uninstall and reinstall Darkroom Lab Timer. If nothing else has worked, completely uninstall Darkroom Lab Timer then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Darkroom Lab Timer not working


2. Fix Darkroom Lab Timer Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Darkroom Lab Timer be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Darkroom Lab Timer not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Darkroom Lab Timer may not be able to connect to the Internet when running in the background.

Reported Issues