Last June my husband suffered a big health scare. To make a long story short...... in the end it was his blood pressure. It was recommended he regularly check his blood pressure. So once a week, he'd head off to the health station at work to have it checked. Then they lent him a home kit for about a month. Finally they recommended he buy his own, which of course did not happen until NOW! I happened to be browsing the apple store when I came across the ihealth blood pressure dock. There were many 5 star reviews and best of all, your history is recorded on your iphone. The ihealth app is free! The blood pressure machine was $99. It arrived at our house within a week - 3rd apple purchase of the month:) So far - so good! My husband thinks it's worth the 5 star rating. He is checking his pressure twice daily!