I installed WhatsApp on my IPhone 4, then I continuously update WhatsApp every update issue without problems.
Then I bought IPad and used the same user name and pass for appstore that I am using on IPhone.
Then the IPhone is not accepting the Usename and the pass anymore,
on the IPad I can use appstore with the username and pass!!
1- Is there a way to have them both (iPhone and iPad) work on appstore using the same username and pass??
2- I have created another account for iPhone on appstore, Is there a way to shift WhatsApp on appstore from (old user name and pass) to (new user name and pass)