Holy crap, this is hard. I need to try the phone version, because I am not fast enough with the mouse. I got like 37 points in Time Attack. I appreciate the double tap reminders, though, because I never have any idea what's going on.
Try to keep yourself on about 3 trees and get used to the speed of the fruit, seeds are fastest, then apples, then blueberries and bananas are a bit crazy because they jump out, check out this video https://www.youtube.com/watch?v=QXjU0_LoJMk :) Goodluck and thank you so much for giving it a go!! Once you master and get used to a few things it gets much easier, it's a bit of a steep learning curve :)