I've been terrible at focussing on anything all my life. I fidget and task-switch all the time. It's very hard for me to concentrate of a single task without my mind drifting off, or being distracted by something unimportant. But this app has (pretty much!) saved me! I've been using it every day for a week, and it's really great. The psychological trick it plays on me is really startling — the 'tree' you grow will 'die' if you cancel the timer, or leave the app, and, despite how stupid it sounds, that alone makes me focus, preventing me from giving up. Guess I have a weak mind, haha. At any rate, I really like this app.I do have some suggestions, however: to request nicer/more fluid animations for the growing trees; better notifications/sounds for when your timer has expired; some optimisation, for the app does seem to drain the battery on my iPhone faster than you'd expect. There’s also no update to take into account the “notch” on newer iPhone models. I’d also very much prefer an option to grow full-sized trees for shorter time periods. Make it fully customisable! Having to set a two hour work session to grow a full-sized tree (which look so much nicer than a forest of small ones!) is pretty detrimental, as concentrating for that length of time without a break is actually detrimental to learning/effective productivity. Instead, we should be able to choose what sized tree to grow, regardless of the time allotted. Thanks for making me more productive!