IOS device display old data

I am login using different users in my app, but it display other users data on another’s login dashboard. IOS store previous user credentials and logged in using them , even I enter updated user details.

can any one assist me what could be the issue. For android its working fine.

I am ruing command like this.

ionic run ios.

And then testing app on my iPhone 7+

Is it a browser login or are you using your own form

I am using ionic v1 and html 5 form .