Best Ive tried and continually expanding.
Ive used mynetdiary for a couple of years and it has continually improved. Best development was Diabetese Tracker, medication tracking, and blood sugar in particular. Very robust and easy to use. Only wish - better estimate of caloric burn with exercise tracking. Not aware of any other comprehensive app that does it either. Best app of its kind that Ive used.
14Ron14 about
Diabetes Tracker by MyNetDiary, v4.61