It’s worth a download, though, and not just because it’s free for the first year. WhatsApp is basically an instant messaging service — you can send text, picture and video messages to anyone with the app, set away statuses similar to Gchat or AIM, and organize contacts into groups for easy mass-messaging. The concept is simple, but it’s really caught on. WhatsApp currently has 450 million users, many of them in the U.K. and Asia, where it competes with other messaging apps like WeChat.
February 19, 2014 at 6:09 PM EST