I didn't know hell until I tried to open a specific sheet on the phone app. First, whenever I scroll down at all, I'm also forced to open every single sheet my fat thumb touches for so much as half a second. Then, those sheets loading up and finally deigning to leave takes aboit half a minute at a best of times. Finally, guess where the 'x'to close the sheet is located? That's right - RIGHT ABOVE THE SHEETS. It becomes quite literally impossible to close a sheet without opening it anew. So I'd whole-heartedly suggest toning down the sensitivity, or perhaps adding space to work on with the thumb without opening a damned thing?