Diabetes management app for iPhone

I am in need of a good app for iPhone where I can record all of my blood sugar readings, what I eat, carb intake and the amount of insulin I take at each meal. I would also like to be able to share my data in some way so my doctor can look at it at my next appointment. I’ve played with a couple free apps today but I haven’t found any that I really like. If I have to buy an app that’s fine as long as it’s easy to record and view data.

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