3 of my plants have died. I had 2 tiny beautiful mandarins, in a perfect health and state. The app showed that i should water them 1 time per month during winter. 2 weeks after buying them, they got completely dry and I could not save them, even though i followe the exact instructions from the app! After checking with a botanist, he told me I should have watered them 1 or 2 times. Same happened with my dwarf palm, has died 1 month after purchasing it. I am so sad :(