Love this app!!
So simple and useful. Can’t live without it! Great for quick calculations.
good light
10/10 would light again
Archived App (Last seen on 8 Aug 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
This app calculates field diameter and illuminance using photometrics. It also features a Pythagorean theorem calculator to quickly find throw distance for lighting fixtures, with a built-in library and custom options.
✓Field diameter calculation
✓Illuminance calculation
✓Pythagorean theorem calculator
✓Lighting fixture library
✓Custom fixture option
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What's New in Photometrics +
1.1
May 5, 2018
This app has been updated by Apple to display the Apple Watch app icon. ********************************** - Added option to use meters - Easily toggle between feet/footcandles & meters/lux - Minor bug fixes *********************************
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FAQ
What is Photometrics + used for?
Photometrics + is used to calculate field diameter and illuminance for lighting. It also includes a Pythagorean theorem calculator to determine the throw distance of lighting fixtures.
Does Photometrics + have ads?
No, Photometrics + does not contain advertisements. It is a completely ad-free application.
What devices does Photometrics + support?
Photometrics + is available on iPhone, iPad, and iPod devices.
How often is Photometrics + updated?
The latest version of Photometrics + is 1.1, last updated on May 5, 2018. The app was initially released on April 22, 2018.
Can I add my own lighting fixtures to Photometrics +?
Yes, Photometrics + offers a custom lighting fixture option, which is useful for fixtures not included in the built-in library.
What is the age rating for Photometrics +?
Photometrics + has an age rating of 4+, making it suitable for a wide range of users.
What units can Photometrics + calculate in?
Photometrics + can calculate field diameter in both feet and meters, and illuminance in both footcandles and lux.
What do users think of Photometrics +?
Based on the available data, Photometrics + has a perfect rating of 5.0 stars from 3 ratings, indicating very positive user sentiment.
