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Last updated on: 2025-07-13
Android Apps > Tools > Photone - Grow Light Meter
Photone - Grow Light Meter icon

Photone - Grow Light Meter

1.1.1
Lightray Innovation GmbH
4.77
8,340 reviews
100,000+
Downloads
Free

Keep The Guesswork Out of Grow Lighting: Measure PAR / PPFD for Plants

Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Photone - Grow Light Meter Screenshot
Google Play

About Photone - Grow Light Meter

Photone - Grow Light Meter is a tools app developed by Lightray Innovation GmbH. The APK has been available since July 2021. In the last 30 days, the app was downloaded about 20 thousand times.
It's currently not in the top ranks.
It's rated 4.77 out of 5 stars, based on 8.3 thousand ratings. The last update of the app was on April 15, 2025. Photone - Grow Light Meter has a content rating "Everyone".
Photone - Grow Light Meter has an APK download size of 41.10 MB and the latest version available is 1.1.1. Designed for Android version 7.0+. Photone - Grow Light Meter is FREE to download.
Description
Take the guesswork out of grow lighting! Measure PAR / PPFD, Lux, fc, and Kelvin: All within the most accurate light meter app out there.
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More data about Photone - Grow Light Meter

Price Free to download
Total downloads 350 thousand
Recent downloads 20 thousand
Rating 4.77 based on 8.3 thousand ratings
Ranking Not ranked
Version 1.1.1
APK size 41.1 MB
Number of libraries 12
Designed for Android 7.0+
Suitable for Everyone
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Google Play Rating history and histogram

7K
900
370
0
63

Downloads over time

Photone - Grow Light Meter has been downloaded 350 thousand times. Over the past 30 days, it averaged 650 downloads per day.

Changelog

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Developer information for Lightray Innovation GmbH

Lightray Innovation GmbH

contact@growlightmeter.com

Website

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Comments for Android

★★★★★ Actually works. Actually accurate. But order the 27 dollar diffuser accessory. Sounds silly, but it's legitimate and literally causes my Samsung A52 mid-range phone to consistently give me PPFD and DLI readings that confirm my LEDs manufacturers light tests to be accurate! This is the only legitimate par meter app that is not a silly app compared to a 600 dollar apogee part meter. This is not as proficient as apogee obviously but even apogee instruments Founder vouches for the efficiency!
★★★★★ This app has been fantastic, I have the diffuser accessory now, and it made it a lot more stable. I have been using paper, and it was reading quite a bit lower than it actually was, and I always thought I was having to run my plants with low light and I felt bad always trying to push them thinking I was running low. Now, with the accessory, it seems to be much better. I had to raise my lights and dim one of them, and after a couple of weeks, everything is great.
★★☆☆☆ Update ruined this app, lower from the light I go brighter it reads and vice versa going up gets dimmer sorry guys
★★☆☆☆ Used this app for years worked great now I need a diffuser yet never did before nothing has changed same light same grow space sounds like cash grab
★★☆☆☆ Need a separate device now. Was the only reliable source for a long time. So long old friend.

Google Play Rankings

This app is not ranked

Technologies

Photone - Grow Light Meter is requesting 12 permissions and is using 13 libraries.
Show details
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