Most houseplants don't die from neglect — they die from watering on a guess. Overwatering is the most common way people kill them. LeafLens fixes the timing: photograph any plant to identify it and check if it's pet-safe, then it builds a watering schedule for that exact plant and reminds you the day water is actually due. Mark it watered and the next reminder re-bases itself. It also diagnoses disease from a photo and answers questions about your own plants.