Solspot: Plant Light Meter

Solspot: Plant Light Meter

Lux Meter · What Grows Here

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Details

  • Released
  • Updated
  • August 20, 2026
  • September 8, 2026

Features

Solspot: Plant Light Meter screenshot #1 for iPhone
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Solspot: Plant Light Meter screenshot #8 for iPhone
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About

Solspot measures how much light a spot in your home actually gets — then tells you which plants will live there. Lay your phone flat where the plant will sit, screen toward the light. Solspot reads your camera's light meter and gives you an honest answer: a category, a number, and the real range around it. MEASURE THE SPOT, NEVER THE PLANT Light is a property of a place, not a leaf. Solspot measures the light arriving where a plant would sit, the same way a leaf receives it. AN HONEST ANSWER, NOT FAKE PRECISION Every reading comes with the range it could really be. When your device hasn't been calibrated, the range widens and Solspot says so. If a spot is brighter than the camera can measure, Solspot tells you that instead of inventing a number. PLANTS THAT WILL ACTUALLY LIVE THERE Matched against your measured light — with the caveats included. A plant that will survive but sulk is shown as exactly that, not hidden behind a percentage. PET SAFETY, SOURCED NOT GUESSED Pet toxicity comes from the ASPCA's lists and nowhere else. When ASPCA doesn't list a species, Solspot says "unverified" rather than guessing. "We don't know" is never presented as "safe". SAVED SPOTS AND SEASONAL RE-CHECKS Save a windowsill and watch its light change through the year. Light in January is not light in July, and Solspot reminds you to re-check. FULLY OFFLINE No account, no backend, no photos. The camera is used as a light sensor: no images are captured, stored, or sent anywhere. FREE — NO SUBSCRIPTION, NO ADS, NO IN-APP PURCHASES Every light reading including direct sunlight, the category and its honest range, plant matches with their caveats, every filter, buy links, and unlimited saved spots. All of it, free. The competitors that paywall sunlight are the reason this app exists.
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What's New in Solspot

1.2

September 8, 2026

Plant basics: the things that actually keep a houseplant alive. • Eleven short guides at the top of the Plants tab — light, watering, over- and underwatering, pots, leaves, pests, humidity, feeding, repotting, winter and pets. • Three cards each, about fifteen seconds. Tap to move on, hold to pause. • Honest about what doesn't work: misting for humidity, feeding a sick plant, watering on a schedule. • The pets guide opens straight into the plants the ASPCA lists as non-toxic. The measurement engine is unchanged, so your saved readings still mean exactly what they did before.

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