ColorMetric
Aquarium Test Kit Analyzer
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Water Testing, Perfected for Your Eyes and Your Environment.
Are you tired of squinting at paper charts trying to decide if your Nitrate is 10 or 20? ColorMetric transforms your iPhone into a professional-grade colorimeter. Designed for both freshwater enthusiasts and reef-keepers, our app eliminates the subjectivity of traditional testing.
What makes ColorMetric different?
Intelligent Lighting Calibration: Room lighting often distorts colors. ColorMetric allows you to calibrate the app to your specific environment, ensuring your camera "sees" the same color every time, regardless of whether you’re under LEDs or sunlight.
Individual Card Calibration: Every test kit brand has slight variations. You can calibrate the app to your specific test cards for unparalleled accuracy.
Guided Test Assistant: Never botch a 5-minute wait again. The app walks you through every step of the testing process with integrated timers and clear instructions for every parameter.
Dual Environment Support: Specialized profiles for Saltwater and Freshwater aquariums, covering everything from pH and Ammonia to high-sensitivity Reef parameters like Phosphate and Magnesium.
A Healthier Tank Starts with Better Data
Accuracy is the difference between a thriving ecosystem and a crash. ColorMetric bridges the gap between affordable liquid tests and expensive digital monitors, giving you the precision you need at a fraction of the cost.
Download ColorMetric today and stop guessing.
Privacy Policy URL: https://colormeter.web.app/privacy-policy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved Nitrate testing, color selection and color comparisons.
The developer, Lance Zukel, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Lance Zukel
- Size
- 6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- ColorMetric Annual Ad Free $9.99
- Copyright
- Copyright © 2026 Lance Zukel. All Rights Reserved.
