Several cases are reported where patients forget their appointments with doctors simply because they didn't receive a notification at the right time. Now with GReminders patient reminder software doctors and clinics can send out doctors appointment reminder as SMS to patients mobile number so they are intimated well in advance about their upcoming visit. What's more useful is the fact that GReminders can integrate directly with calendar applications like Google Calendar to send text reminder from Google calendar. Arguably GReminders is one of the best sms appointment reminder system out there in the market today. Visit https://www.greminders.com/ for a free trial.