How to use WhatsApp

WhatsApp has versions for iPhone, Android, Windows phone, and the Nokia S40. There’s also a web app and desktop versions for Mac or Windows PCs, but you need to have it installed on your mobile phone first, since each WhatsApp account is tied directly to a single phone number. Once you download and install the app, you need to confirm your country and enter your telephone number. To set up your profile, you can either import your Facebook information with a single click, or manually add an image and add a profile name (which you can change later). WhatsApp uses the phone numbers from your phone’s contact list to show you an up-to-date directory of WhatsApp users who you already know. Anyone who has your phone number in their phone’s address book will automatically see your listing, too, unless you change your privacy settings.