How do I get my WhatsApp updated since it was bought under another Apple ID?
Good afternoon! I'm asking for advice in this situation: my iPhone (8 plus, 14.4.2) requires updating WhatsApp. It turned out that WhatsApp is tied to my brother’s Apple ID; once upon a time we used the same account. and now to update the system requires a password from it, but WhatsApp is registered to my personal number and to my Apple ID. Will chats be lost when entering someone else's password to update WhatsApp? Thank you in advance for your help.
[Re-Titled by Moderator]
iPhone 8 Plus, iOS 14