how to see whatsapp last seen even if they are hidden in iphone?
['Open WhatsDog, tap on the big Start button. ... ', "Not so soon, you won't be able to see the last seen activity as soon as you add a number. ... ", "To add or change a new number, go to settings icon in the app, swipe up and select 'Delete info', the app will simply start from the step 1."]