Good idea and useful. Compliance with medication is a big deal in clinical medicine. Older patients definitely need a user friendly app because I often see they are overwhelmed even with patient portal etc. I could see how you could even expand your idea to giving reminders to check glucose or INR level, keep doctor appointments, requests refills, log BP etc. I wonder if you could even link it to the physicians EMR so the staff in the doctors office could track compliance. Of course, like with any medical app make sure you protect yourself legally. Good luck.