Light Meter: your phone, turned into a plant light meter
388 plants
a library with sourced light ranges
fc · lux
smoothed readings mapped to plant-light bands
Nothing to buy
one version, everything included
Coming soon to Google Play
Read a spot
A 10-second average from the phone's sensor, shown as foot-candles, lux and a plant-light band.
Which plants fit
See which plants in the library are happy at that level, with sourced light ranges.
Plant first
Pick a plant, then walk the room and find the spot that fits it.
Care sheets
Light, water and care notes for each plant in the library.
Projects and reports
Save spots with photos and labels, group them by client or room with an address, and export a branded PDF report.
Works offline
No account and no network needed. Backup and export are files you keep.
One version. Nothing to buy.
Light Meter
Free
Everyone gets the same app with everything included.
Needs a light sensor
Most Android phones have one
If yours does not, the app tells you.
Your data
Stays on your phone
Readings, projects and photos stay on the phone. Only a street-name lookup leaves it, and only when you tag a location.
Questions
Is a phone as accurate as a real light meter?
No. A phone's light sensor is not a calibrated meter. Readings are a useful guide for comparing spots in your home, not a measurement for professional or scientific work.
Which plants does it know?
A library of 388 houseplants, each with a sourced light range and care notes.
Does it need an account?
No. There is no account and no server.
Does it work with grow lights?
Yes. Readings work under any light, and the demo lets you compare a window spot with a lit one.
Is plant information advice?
Plant suggestions and care notes are general information. Check with a professional for your situation, and with a vet or Poison Control about pets and children.
Is Light Meter on iPhone?
Not yet. Light Meter is an Android app for now.
Try Light Meter in your browser
Browsers cannot read the light sensor, so the demo simulates readings for sample spots. Pick a spot, see the band and which plants fit, then try Plant first.
Light Meter is made by Plantburgh Products LLC. Privacy · Terms · contact@plantburgh.com