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Turn your device into an accurate light meter — for plants (PAR/PPFD/DLI) & more
Photone turns your Android device into a precise plant light meter, measuring PAR, PPFD, DLI, lux, and color temperature with camera-based sensing. Free to start and ad-free for basic use, it offers device-specific calibration, guides, and grow-light tools. With 500,000+ total downloads and 12K in the last 30 days, Photone has established a strong foothold in the TOOLS category.
Pros & Cons
- Ad-free basic experience and no unnecessary permissions.
- Device-calibrated readings for reliable results across devices.
- Supports multiple grow light types (LED, HPS, CMH, etc.) and advanced readings.
- Free to download with paid upgrades (Lifetime unlocks and Pro subscription)
- Recent 30-day downloads are zero, indicating no new downloads in the last month.
- Some advanced features require in-app purchases to unlock.
- DIFFUSER REQUIRED for accurate measurements; diffuser can be DIY or a dedicated accessory, which may add setup steps.
About Photone - Grow Light Meter
Photone - Grow Light Meter is a tools app developed by Lightray Innovation GmbH.
Download Statistics
Photone - Grow Light Meter has been downloaded 560 thousand times. In the last 30 days, the app was downloaded 12 thousand times. It is ranked in the top 100 tools apps.
User Ratings
Photone - Grow Light Meter is rated 4.65 out of 5 stars. The rating is based on 10 thousand ratings.
App Information
Photone - Grow Light Meter is FREE to download. The APK download size is 88.35 MB. The latest version available is 1.5.0. The last update was on July 11, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play July 2021.
More data about Photone - Grow Light Meter
| Price | Free to download |
| Total downloads | 560 thousand |
| Recent downloads | 12 thousand |
| Rating | 4.65 based on 10 thousand ratings |
| Ranking | Highly ranked |
| Version | 1.5.0 |
| APK size | 88.3 MB |
| Number of libraries | 20 |
| Suitable for | Everyone |
| Ads | NO ads |
App Performance Report
Get a detailed PDF report for Photone - Grow Light Meter with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Alternative downloads for the Photone - Grow Light Meter app
Photone - Grow Light Meter compared with similar apps
Common keywords of similar apps
Photone Diffuser Par Dli Grow Accurate Free Https Camera Maps Calibration Devices Guides Logging Purchase Default Quality Full Candles Color Temperature Kelvin Meters Daily Integral Toolbox Auto Model Ads Required Led Require Real Options Light App Measurements Meter Device Ppfd Plant Measure Accuracy Features Plants Lux Sensor Foot Time
Keywords missing from this app
Intensity Exposure Lighting Brightness Measurement Measuring Level Pro Maximum Illuminance Support Levels Home Indoor Simple Values Tool Growth Information Easy Room Fc Minimum Work Recent Photography Shows Average Screen Candle Helps Office Apps Results Professional
Google Play Rating history and histogram
Downloads over time
Photone - Grow Light Meter has been downloaded 560 thousand times. Over the past 30 days, it averaged 410 downloads per day.
Changelog of Photone - Grow Light Meter
Developer information for Lightray Innovation GmbH
Comments on Photone - Grow Light Meter for Android
Google Play Rankings for Photone - Grow Light Meter
Ranking history in Denmark
Technologies used by Photone - Grow Light Meter
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