LumenLeaf vs LUX METER

LumenLeaf turns your phone into a real PAR / PPFD grow light meter for monstera, fiddle leaf fig, pothos, snake plant, succulents, orchids, microgreens, herbs, hydroponics, grow tents and legal home cultivation — all free, offline, with no account, no ads, and no subscription. Measure photosynthetically active radiation (PAR / PPFD), Daily Light Integral (DLI), illuminance (lux / foot-candle) and color temperature (Kelvin) directly with your phone's camera and ambient light sensor. WHAT YOU CAN MEASURE - PPFD in µmol/m²/s — real-time photon flux density - DLI in mol/m²/d — daily light integral with photoperiod input - Lux and foot-candle illuminance - Color temperature in Kelvin (CCT) - Per-light-source readings: Sunlight, White LED, HPS, CMH, Fluorescent, Mixed WHY LUMENLEAF - 100% free — every feature, every plant preset, no paywalls - No account, no email, no sign-up - Works fully offline - Available in 20 languages from launch - Honest about accuracy — we tell you when you're on camera mode vs ALS estimate - No physical hardware to buy — interactive printer-paper diffuser walkthrough - Zero data collection, no analytics SDK, no advertising IDs PERFECT FOR - Houseplant parents — monstera, fiddle leaf, pothos, snake plant, calathea, ZZ - Microgreen growers - Indoor herb gardens — basil, mint, rosemary, oregano - Succulents, cacti and orchids - Hydroponic and aeroponic setups - Grow tent hobbyists - Aquarium plant keepers (v1.1) - Legal home cultivation WHAT WE MEASURE THAT OTHER APPS HIDE LumenLeaf is the only free grow light meter that openly distinguishes camera-grade readings from ambient light sensor (ALS) estimates. If your phone does not have a calibration profile, we tell you — no silent fallback that quietly halves your accuracy. HOW IT WORKS LumenLeaf uses your phone's rear camera in RAW mode (when supported) for research-grade illuminance, then converts to PPFD using light-source-specific coefficients. On phones without RAW support, we fall back to the ambient light sensor and clearly mark which mode you are on. A simple printer-paper diffuser is required — build one in under 2 minutes with our visual guide.

Lux and PPFD Meter Pro turns your mobile device into a professional-grade light measurement tool, designed specifically for indoor growers, plant enthusiasts, and gardeners. Measure and track the exact light levels your plants need for optimal growth using scientific metrics. Key Features: Precise Lux and PPFD Measurement Get accurate, real-time measurements of Lux and Photosynthetic Photon Flux Density (PPFD) using your device's camera. Fine-tune your readings with advanced calibration tools to match professional reference light meters. DLI (Daily Light Integral) Calculator Calculate the cumulative daily light integral (DLI) received by your plants. Track whether your plants are meeting their light requirements based on the light source type and daily exposure duration (photoperiod). Smart Plant Growth Guides Access recommended DLI and PPFD target ranges for various growth stages, including seedlings, vegetative, flowering, microgreens, and leafy greens. Tailor your setups to meet these targets. Live AR Light Distribution Mapping Use augmented reality (AR) technology to pin and measure light intensity at different spots in your grow room or house. Visualize the 3D distribution of light overlaid on the live camera view. AI Plant Doctor and Guidance Get instant visual analysis of your plant setup to diagnose light sufficiency. Receive tailored guidance on plant placement and light adjustments to prevent light burn or stretching. Daylight Mapper and Location Assistant Log measurements throughout the day (morning, noon, and evening) to scientifically map the light patterns in your home. Find the absolute best location for any plant type. History Log and CSV Data Export Save your measurement sessions and review detailed analytics, charts, and statistics (minimum, maximum, and average values). Export your logged data in CSV format for sharing or external analysis. Privacy and Security: This app requires camera permission solely for calculating light intensity and rendering AR features. No photos, videos, or camera feeds are ever recorded, saved, or shared with third parties. Take the guesswork out of plant care. Manage your growing process scientifically with Lux and PPFD Meter Pro. Pro Lifetime Access: A one-time purchase that unlocks all professional features permanently. No recurring charges. Support, Privacy, and Terms of Use: Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://doc-hosting.flycricket.io/lux-metre-lux-fc-ppfd/1a214033-86af-4837-8110-a81c23dd54ff/privacy