Sometimes you may want to sign in to a different Apple ID from what it is currently logged in to. 

  1. Tap the App Store icon to open it. 
  2. Tap the Account icon on the top right corner. This opens the Account pop up window and the logged in Apple ID is displayed on top.
  3. Tap the Sign Out button at the bottom to sign out of the currently logged-in Apple ID. 
  4. Now login to the new Apple ID.