This app transforms your phone into a professional grow light meter. It measures PAR, DLI, illuminance, and color temperature to help you optimize plant growth. It's completely free, works offline, and requires no account or ads.






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Whether you want more options like LUX METER or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.











This app transforms your phone into a professional grow light meter. It measures PAR, DLI, illuminance, and color temperature to help you optimize plant growth. It's completely free, works offline, and requires no account or ads.





