Plant Light Meter tells you whether a spot has enough light for a plant, and where in your home each plant will do best. Hold the phone where the leaves will be, screen facing the window. The app reads the light through the camera and marks it on a light bar that runs from too dark to direct sun. The stretch your plant likes is coloured, a marker shows the light where you stand, and one sentence gives the answer, such as "Enough light for Monstera" or "Too dark for a fiddle-leaf fig". Next to it you see the number in lux or foot-candles and the light band: too dark, low, medium, bright indirect or direct sun. The reading settles only once the phone is still, so a moving hand does not change the answer. When the light is too low to read, the app tells you plainly and shows no number. Choose from 189 houseplants, flowering plants, herbs and succulents, each with a picture, its Latin name and the light range it is comfortable in. No plant chosen yet? The app lists the plants that would be happy in the light where you are. To find the brightest place in a room, start the scan and walk around with the phone. The brightest reading stays on screen. Where should this plant go? Measure your windows and shelves and keep them as spots. Pick a plant and your spots are ranked for it, best first, each with a verdict. Open a spot to see the plants that suit it. Read a spot in the morning, at noon and in the evening, and its page draws the day as a curve and estimates the daily light integral (DLI) from those readings. Under a grow lamp, choose the lamp type to see PPFD and DLI, and how high to hang the lamp for seedlings, leafy plants, herbs or fruiting plants. A phone camera is not a laboratory meter. Readings are estimates, close enough to place a plant in the right light band. The bands follow the University of Maryland Extension light levels. If you own a lux meter, you can match the app to it. The camera only reads the light. No photo is taken or stored, your readings stay on this phone, and you need no account. Free: the meter, the light bands, plant verdicts, the plant library and the room scan. Plant Light Pro, a single purchase that never renews: saved spots ranked for any plant, the day curve with daily light, and grow-light mode.
Lifestyle · iPhone, iPad · Free
