Support & FAQ
How the measurement works, what the numbers mean, and what to do when a reading looks wrong
Frequently Asked Questions
How do I take a reading?
Open the Measure tab and lay the phone flat where the plant will sit, screen facing up toward the light. The app waits for two things, that the phone is level and that the light has stopped changing, then the Take reading button unlocks.
Put the phone where the pot will stand rather than beside the leaves. You are measuring the spot, not the plant.
Why is there no camera preview?
Because you would never see it. The phone lies face up on a table while it measures, so a viewfinder would be aimed at the ceiling at the one moment it mattered. Solspot shows a live gauge instead.
Nothing is captured while measuring, and nothing is written to your photo library. The one screen that does use the camera as a viewfinder is "See it in your room", where you decide whether to take a picture.
How do I see a plant in my room?
Open one of the ten species that has a 3D model and choose "See it in your room". Point at the floor, then tap to place the plant.
It stands at the size that species actually reaches, and the size slider spans the published range so you can see which end you are looking at. Trailing species show trail length rather than height.
If you take a picture, it is saved to your own Photos and stays on your device until you share it. A device too old to run AR says so instead of failing quietly.
Which plants have a 3D model?
Monstera, Snake plant, Peace lily, Pothos, Aloe vera, Boston fern, Areca palm, African violet, Arrowhead plant and Alocasia. There is a filter in the plant list for them.
The other 90 species publish their mature size as a range, which is the figure the models are built from.
It says "not flat", but my phone is lying on the table
Check that the screen is facing up. Solspot measures through the front camera, so the screen has to face the light. A phone lying face down is perfectly flat, it is just measuring the tabletop.
Why does the reading show a range instead of one number?
Because a single number would be a claim the app cannot support. A phone camera is a good relative light sensor and an imprecise absolute one, so every reading shows how far off the lux figure could be.
The category, Low, Medium, Bright Indirect or Direct, is the dependable part, and it is what the plant matching uses.
My bright window reads "Medium". Is that wrong?
Probably not. Indoor light is far dimmer than it looks, because your eyes adapt to it and a light meter does not. A spot that feels bright often meters a few thousand lux, which genuinely is Medium.
For scale, an overcast day outdoors is around ten thousand lux and direct sun is closer to a hundred thousand. To reach the Bright Indirect band indoors you usually need unobstructed south-facing glass near the middle of the day.
Does it work under a lamp, or through glass?
Both. Under household lighting most rooms honestly land in Low, because lamps put out a small fraction of daylight.
Measuring on the inside of the window is the correct way to do it. Glass cuts some light, and that loss is part of what your plant actually gets. Measure a spot when it is at its brightest.
Is Solspot really free? Is there a Pro version?
The whole app is free. Every reading including direct sun, every plant match, every filter, and as many saved spots as you like. There is no subscription, no advertising, and no in-app purchase of any kind.
Does Solspot need an internet connection?
No. The measurement and all 100 species run on the device, so the app works in full on a plane or in a basement. The only time it reaches the network is when you tap through to a plant shop, which opens in a browser sheet.
What data does Solspot collect, and how do I switch it off?
Anonymous product events (which screens get opened, which filters get used, which light category a reading fell into) and automatically captured crash reports. This is on by default.
To turn it off, go to Settings, then Privacy, then Share anonymous analytics. The switch stops the analytics SDK itself rather than only muting the app's own events, and it takes effect immediately instead of at the next launch.
Solspot never sends imagery, including any picture you take in "See it in your room", never sends what you searched for, and never sends a reading tied to a place. The full detail is on the privacy page.
Where does the pet-safety information come from?
The ASPCA toxic and non-toxic plant lists, and nowhere else. Each verdict names its source on the plant's own page and explains what it is based on.
A species that does not appear on those lists is marked unverified rather than assumed safe. Treat all of it as guidance rather than veterinary advice.
How do I delete a saved reading?
Open the spot, then press and hold the reading in its history and choose Delete. To remove a whole spot, swipe it in the Spots list.
Which devices does Solspot support?
iPhone and iPad running iOS 18 or later. The measurement needs a front camera and a motion sensor, which every supported device has.
"See it in your room" also needs a device that can run ARKit world tracking. Where it cannot, that screen says so and nothing else in the app is affected.
The plant shop links, are those ads?
They are links to shops that sell the species you are looking at. A link only carries an affiliate tag when the app says so beside it, and such a tag would earn a commission at no extra cost to you.
They have no influence on which plants are matched to your light.
Still need help?
Send an email with your device model, the light you were trying to measure, and what the app showed. That is usually enough to explain a reading.
[email protected]We typically respond within 24 to 48 hours.