Reach friends on their smart phones, feature phones or desktop computers.
Though you only get a few extra useful features, WhatsApp Messenger is an excellent choice for sending free texts across platforms, even internationally.
If you need to keep your conversations discreet, or just want an extra layer of privacy, Wiper for Android and iOS can help out.
Download Facebook Messenger if you want the same robust chatting features from Facebook's Web site on your phone.
BlackBerry Messenger's scattered design and basic features keep it behind the competition.
Facebook Messenger is still the best way to chat with Facebook friends from your Android device.
Commentary: Does Google really need four chat apps? This veteran social chatter says no.
Forget switching apps hundreds of times per day to answer messages on different services. Install All-in-One Messenger to keep all your chats under one roof.
The revamped Yahoo Messenger app, which first landed on mobile devices in December, is now available on Windows and Mac.
Facebook is back at it again with another hidden game in Messenger.
Allset's Facebook Messenger chatbot finds nearby restaurants, books tables and lets you order meals.