Hello the S Health Data App has to be the best thing about my Samsung Galaxy Note 3 and the worst thing all at the same time. It is a big reason why I would stick with Samsung phones and also a big reason why I am thinking of switching to an IPhone. Let me explain, when it works, it is the best thing ever. But when it starts to act up I want to put my phone where the sun don't shine and there seems to absolutely no where or no one to help you. I had been using this app to document my steps and at that time about 75 pound weight loss. Then all of a sudden all my data disappeared. This should have been no problem as supposedly my data is backed up to my Samsung account. I was having trouble getting my information back and also trying to get the replacement app downloaded. I went to several different Verizon stores and they could not get it to work. I called Samsung support and they wanted to send me a new phone. No help with just the app. I finally got the app to work and had to register for backup again. I used the same username and everything and I am thinking oh joy, I may yet get my data back. No such luck. But at least from that point it seemed to be working. Now all of a sudden it just changes my steps. I did not have any months with under 10,000 daily average. Now all of a sudden I have a month with under 10,000 daily average. The other day I checked my steps and then I checked them again later and I was about 5000 steps less then when I checked it before. Today I checked my steps and it said I had 14,800 some and while I was looking at it, it changed to around 10,400. I have a pedometer on my watch also, which usually shows less steps then my phone and that showed over 14,000 steps so I know by that and the amount of time I was walking that the 14,800 should have been the correct number. And what about those leader board stats. I did the math and those people would have to do over 5000 steps an hour for 16 hours a day 7 days a week to get those kind of numbers. So anyway, I don't expect anyone to help me, I just hope someone from Samsung monitors this and gets the bugs out of this app or else, next phone, IPhone.