Blackthumb

Plant App

The indoor plant care companion for people who think they can't keep plants alive.

Track watering, measure light, and get research-backed care guidance from your iPhone or Android device.

Get it on iPhone Get it on Android
Advanced Light Meter

Light Meter

Know exactly how much light your plants get.

Get a daily DLI light score for any plant or location. Stop guessing — know exactly if your spot gets enough sun for your plant to thrive.

Custom Care Tracker

Care Tracker

Never miss a watering again.

Set reminders for watering, fertilizing, repotting, and more. Every plant, every task — all in one place.

Plant Care Database

Plant Database

Research-backed care for thousands of plants.

Research-backed profiles for thousands of houseplants. Know exactly what your plant needs to thrive.