Android, iOS, Bada, BlackBerry, Nokia, Windows Phone, Linus, Mac OS, Windows; free
In some respects, it's almost unfair to call Viber a texting app because, really, it does a lot more than that. This free app works with Android, Bada, BlackBerry, iOS, Nokia, and Windows Phones, as well as on Windows, Linux, and Mac desktops. It lets you connect to other Viber users for free via voice, video, or text messaging and make voice calls to non-users when you buy Viber Out credits. Some of its texting features will turn off business users, especially its animated backgrounds and emoticons. But I like its ability to bring your text messages to your desktop computer, even in the middle of a chat session.
Android, iOS, Windows Phone; free
Despite its name, Text Me offers more than just texting. This free app lets you make voice and video calls, too. It works with Android, iOS and Windows Phones and lets you send messages to and from folks who aren't using the app on their end — a nice plus if you don't want to convince your friends and colleagues to download an app. The downside is that Text Me requires you to sign up for a new number, likely to be a big issue for business folks who have already shared contact info with coworkers and clients. You'll also need to purchase Text Me credits if you'd like to send international SMS or make calls to non-Text Me users.
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