Luxdeck
PPFD, lux, DLI & color temp
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Point your camera at a light and read PPFD, lux, DLI and color temperature at once. No diffuser to clip on, nothing uploaded, and it's free to use.
Luxdeck turns your iPhone camera into a light meter. Point it at a lamp, a window, or a grow light and read four things at once: illuminance in lux (or foot-candles), PPFD and DLI for plants, and the color temperature of the light in kelvin.
Most light meter apps make you buy or clip on a diffuser dome before the numbers mean anything. Luxdeck reads straight from the camera, so you can pull it out and measure whenever a question comes up: is this corner bright enough for the fern, how warm is this bulb, is the desk lit well enough to work.
WHAT IT MEASURES
Lux and foot-candles for everyday lighting.
PPFD, the light plants actually use for photosynthesis.
DLI, the total light a spot receives over a day.
Color temperature in kelvin, from warm tungsten to cool daylight, with a warm-to-cool scale so you can read it at a glance.
BUILT TO BE HONEST
Every reading carries a small badge that tells you how confident the measurement is and whether the app has been tuned for your specific phone. No hidden fudging, no pretending a phone camera is a lab sensor.
WORKS ANYWHERE, KEEPS TO ITSELF
Everything runs on the phone. There is no account to create, no network call, and no data leaves the device. The camera is used only to read light in the moment; frames are never stored or sent.
FOR GROWERS AND EVERYONE ELSE
If you keep plants, Luxdeck reads PPFD and DLI so you can match a spot to what a plant needs. If you shoot photos, set up a room, or just want to know how bright and how warm a light is, the same numbers are there without any gardening jargon in the way.
Free to use. A Premium upgrade unlocks unlimited saved history and CSV export for people who log readings over time.
Terms of Use (EULA): https://www.luxdeckapp.com/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 秋林 周, 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
- 秋林 周
- Size
- 2.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Pro Unlock $19.99
- Monthly Premium $2.99
- Yearly Premium $9.99
- Copyright
- © 2026 Qiulin Zhou
