Supported Features
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Larger Text
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Dark Interface
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Differentiate Without Color Alone
Lab Assistant: Darkroom Timer
Your darkroom’s best companion
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Bring clarity and consistency to your darkroom. Lab Assistant helps you build, edit, and run film development processes with confidence so you can focus on the craft, not stuck in a development book.
Digitize your process and refine your favorite recipes step by step. Add notes, set precise durations, and define agitation patterns. When you’re ready to develop, Lab Assistant guides you with a clean, focused timer interface that keeps you on track from first pour to final rinse.
Whether you're a seasoned printer or developing your first roll, Lab Assistant turns your workflow into repeatable results.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Added Lab Assistant Pro which introduces Time/Temperature Presets, Autotime, and unlimited workflows
- Updated the process of setting development times to be much easier and precise
- Fixed various layout issues
The developer, Jack Kroll, 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 Not Collected
The developer does not collect any data from this app.
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Jack Kroll
- Size
- 4 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro $1.99
- Copyright
- © 2025 Jack Kroll