Everytime I open this one app, all the info I have stored disappears, why?

I

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everytime I open this one app, all the info I have stored disappears

I have an iphone 5s. The app is a health app that I have been recording my blood pressure for over a week.
 

Ledsteplin

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Oct 2, 2013
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Re: everytime I open this one app, all the info I have stored disappears

Or find a similar app to keep your information. They have several to choose from. It sounds like the one you're using is broke. It may need an update. It's not normal for info to vanish that way. If there is a contact email or Twitter for the developer, let them know what it's doing.