I have been using this app for years. I get really hooked on committing to longer focus times just to unlock the full potential of the trees offered (there are different aspects to the tree with different amounts of study time, ie less than 60mins, greater than 60mins, and a special one for 2 hours of focus, plus bushes). As someone with ADHD (and OCD, which may explain my obsession with this app), studying wouldn't be the same without Forest! 🌲