Photone vs PPFD METER

Turn your iPhone or iPad into a PAR meter. Measure PPFD, DLI, lux, foot-candles, and color temperature (kelvin) to give your plants exactly the light they need. Trusted by millions of growers, Photone is the only accurate plant light meter app. How much light do your plants really get? Are your lamps hung too high, dimmed too low, or on for too long? Whether you grow houseplants or use a grow tent, greenhouse, hydroponics system, or aquarium, Photone answers these questions and more. Photone is more than just a PAR meter: it gives you the tools and guidance to understand the numbers. MEASUREMENTS ⎷ Photosynthetically Active Radiation (PAR) as PPFD in µmol/m²/s ⎷ Daily Light Integral (DLI) in mol/m²/d ⎷ Illuminance in lux or foot-candles ⎷ Correlated color temperature (CCT) in kelvin * ⎷ Extended PAR (ePAR) including far-red light (ePPFD, eDLI) * FEATURES ⎷ Industry-leading accuracy ⎷ Heatmaps — Create PAR maps, PPFD maps, DLI maps, lux maps, and export them as images ⎷ Logging — Track measurements over time as an interactive chart, Auto-Log sessions, and export or import them ⎷ Projected DLI — Get the daily light your plants receive instantly by entering how long your lamps are on ← perfect for grow lights ⎷ Actual DLI — Leave your device in place and use Auto-Log to sum up the light throughout the day ← perfect when measuring sunlight ⎷ In-app guides ⎷ Light calculators and recommendations ⎷ Excellent low light sensitivity to detect light pollution for plants ⎷ Custom calibration option to align readings to another meter ⎷ No Bluetooth and location permission required ⎷ No ads ⎷ All grow light sources supported (Natural sunlight, LEDs, HPS, MH, etc.) * ⎷ Photone for Apple Watch — monitor live readings from your wrist * ⎷ Average and peak readings * ⎷ Hands-free "read aloud" function * ⎷ Special underwater measurement mode * ⎷ Pro support by real human experts * * These features require an in-app purchase to fully unlock HOW ACCURATE IS PHOTONE? Photone matches the accuracy of professional handheld PAR quantum sensors costing hundreds of dollars. Here's how: ⎷ RAW sensor data — capture true light intensity using the camera, the most precise sensor in your device ⎷ Pre-calibrated per device model ⎷ Developed according to the ISO/CIE 19476 standard for light measurement ⎷ Continuously tested — we regularly calibrate and test on new devices DIFFUSER REQUIRED Like every real light meter, Photone requires a diffuser to measure accurately. A diffuser scatters incoming light evenly on the sensor and prevents hotspots. While it may sound complex, the solution is surprisingly easy. You have two options: 1) Easily build a diffuser yourself in less than a minute using standard printer paper. This is accurate enough for most use cases. 2) Get the dedicated Diffuser Accessory (free worldwide shipping) for best accuracy and convenience. More details on https://lightray.io/diffuser/ (!) Do not rely on apps that do not require a diffuser. They are inaccurate because they ignore the basic physics of light measurement. UPGRADE OPTIONS Photone is free to download and use, with no ads or hidden costs. To unleash its full potential, it offers two types of upgrades: → Lifetime unlocks — one-time purchase, always restorable via your Apple Account → Pro subscription — full access for as long as you subscribe, cancel anytime Photone took 7+ years of R&D to develop. Upgrading unlocks powerful features and keeps the app ad-free for everyone. As a member of 1% for the Planet, we donate at least 1% of all revenue to environmental non-profits — so every purchase helps both your plants and the planet. Terms and Conditions: https://growlightmeter.com/terms/

Perfect for both seasoned gardeners and beginners, PPFD Meter sets itself apart from standard grow light meter apps with its comprehensive features and intuitive design. Using your phone's built-in sensors or the acclaimed UNI-T UT383 BT sensor via Bluetooth, PPFD Meter provides precise and reliable light measurements. This accuracy is essential for understanding and optimizing the light your plants receive, ensuring their health and growth. PPFD Meter is more than a light measurement tool; it's a guide to understanding your plants' needs. It converts LUX readings into PPFD (Photosynthetic Photon Flux Density) and DLI (Daily Light Integral), providing critical insights for your lighting setup. Customize up to five different settings profiles for various environments or growth stages, making your plant care as unique as your garden. Advanced Light Mapping and Analysis Step into a new era of light management with PPFD Meter's advanced light mapping capabilities. Our exclusive PAR and DLI Maps feature offers a vivid, detailed representation of light distribution across your grow area, enabling precise adjustments for optimal plant growth. But that's just the beginning: In-Depth Light Analysis: Measure light uniformity to ensure even plant growth, and evaluate your setup's PPF (Photosynthetic Photon Flux) to understand the total light output. Efficiency and Consumption Insights: Assess the efficiency of your lighting system in converting energy into usable light. Track the daily total energy consumption to manage your energy usage and environmental impact effectively. Comprehensive DLI Tracking: Monitor the Daily Light Integral, a key factor in regulating plant health and growth cycles, ensuring your plants receive the right amount of light each day. These advanced features make PPFD Meter not just an app, but a vital partner in your indoor gardening journey. It’s a leap forward from typical grow light meter apps, offering a depth of analysis and customization that truly enhances your plant care experience. Download PPFD Meter today and embark on a journey of precision and expertise in plant care. Your plants will thrive like never before! Privacy Policy: https://www.ppfd.app/pp Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/