This question might have already been answered so sorry in advance. My question is: If I am using Whatsapp, it would obviously show me as online but what if I have the application open but my screen timed-out/turned-off, will it still show me as online? Or will it show as last seen (time before screen time-out)? Will it only show as online when I'm in the app actively using it, or will it show as online until I close it (go to home screen or close the app)? Thank you.
WhatsApp will only show you as online when you're in the app. In fact - even if you reply to a message from in-notification, you still won't be shown as online.