Mobile app or mobile site version?

Our clinic provides in-home services, and navigating the full desktop site on a tablet or phone is difficult to say the least. As it stands right now, you can't even click into the text box to add notes to a visit on the schedule page (e.g., for a cancellation), let alone try to enter an actual contact note, as there's no auto adjust for any text box/template so you cannot see anything you're typing...