Darkplug
A darkroom timer app.
About
This app acts as a darkroom timer and printing tool, allowing control of enlargers via a compatible smart plug. It offers precise timing, guided workflows, and a red-on-black interface for film photographers.
What's New in Darkplug
1.0
September 20, 2026
Subscriptions & In-App Purchases
$24.99
Darkplug+
Unlock advance darkroom utilities.
FAQ
What is Darkplug?
Darkplug is a darkroom timer and printing tool for iPhone. It allows you to control your enlarger from your iPhone using a compatible Shelly smart plug on your local network.
How does Darkplug connect to my enlarger?
To use Darkplug, you connect your enlarger to a compatible Shelly smart plug. Ensure the plug and your iPhone are on the same local network, then enter the plug’s local IP address within the app to connect.
What advanced printing tools are available in Darkplug+?
Darkplug+ unlocks advanced features like F-Stop timing, guided test strips, dodge and burn planning, split grade printing, guided paper developing, and reusable Dodge & Burn plan codes for more precise control.
Does Darkplug require an account or cloud services?
No, Darkplug does not require an account login. The core timer operation does not need a cloud backend or external web service, ensuring privacy and local control.
What smart plugs are compatible with Darkplug?
Compatible smart plugs include Shelly Plus Plug S Gen2, Shelly Plus Plug UK Gen2, Shelly Plug S Gen3, Shelly Outdoor Plug S Gen3, Shelly Plug M Gen3, and Shelly Plug US Gen4.
Is Darkplug suitable for use under safelight conditions?
Yes, the app features a clean timer interface designed to be practical under safelight conditions, with large controls and minimal clutter to aid usability in the darkroom.
Does Darkplug have ads?
No, Darkplug does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features.
What is the age rating for Darkplug?
Darkplug has an age rating of 4+, making it suitable for a wide range of users. It is available on iPhone and iPad.
