Solspot: Plant Light Meter

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 shows the light in lux on a gauge that runs from a dark hallway to full sun, with 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 way a leaf receives it.

AN HONEST ANSWER, NOT FAKE PRECISION
Every reading comes with the range it could really be. Until your device is calibrated, the range is wide and Solspot says so. Above 20,000 lux, in direct sun, the camera cannot tell the light apart, so Solspot says "20,000+" instead of inventing a number.

PLANTS THAT WILL ACTUALLY LIVE THERE
Matched against your measured light, caveats included. A plant that will survive but sulk is shown as exactly that. Measure a few spots and Solspot tells you which is your brightest.

CARE THAT STARTS FROM THE LIGHT
Add the plants you own and Solspot works out how often to check each one from the light where it stands, its pot and the season. It asks you to check the soil rather than telling you to water, learns from what you find, and sends one reminder a day naming every plant due. The reminder is free for two plants; Solspot Pro covers every plant. Your care history stays on your phone, and you can export all of it.

SEE IT IN YOUR ROOM
Stand a plant on your own floor at the size its species actually reaches. 22 of the 200 species have a 3D model. Part of Solspot Pro; the first plant you place is free.

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". "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. Solspot reminds you to re-check when the season turns.

FULLY OFFLINE
No account and no server. Your plants, spots and photos stay on your phone. While measuring, no image is captured at all. In "See it in your room" and the sun's path the camera is a viewfinder, and the only picture is one you take yourself, saved to your own Photos. If you let Solspot use your location for the sun, it is rounded to about 10 km and stays on your phone.

FREE, WITH AN OPTIONAL ONE-TIME PRO
Every light reading including direct sunlight, plant matches with their caveats, every filter, buy links, the Learn stories, unlimited saved spots, care for every plant with a daily reminder for two of them, and a full export: free. Nothing you can use today will ever be locked.

Solspot Pro is one purchase, never a subscription, and adds:
• This spot through the year: when sun reaches the window, its light month by month with your local weather, and the sun's path over the view
• Compare spots: which of your spots gets the most light
• Grow-light planner: how close to hang a white lamp, checked with the camera
• What's wrong with my plant? Likely causes from what you see
• Light through the day, See it in 3D and See it in your room
• Reminders for every plant, repot dates and care rhythms
• Photo journal and growth time-lapse, and alternate app icons

The first use of most Pro features is free, and you can try all of Pro for 3 days at no charge. Nothing renews. "See it in your room" and reminders for every plant stay free for everyone who installed Solspot before version 1.7.

No ads, ever.