In a world rife with messenger apps, WhatsApp is among the most successful, boasting an enormous and dedicated user base. Add to that an integrated web version that lets users take their chats to the desktop. Recently, this app was bolstered by encrypted messaging provided by the minds behind Signal. It might just be the largest secure messaging service out there. Android App
Mood Messenger is one of the youngest apps on our list. It doesn’t have a million and a half features, but that’s one of the nice things about it. Mood Messenger keeps things simple while still offering the key features you’ll want. Mood Messenger users can also send messages to each other without using SMS. The app is completely free with no in-app purchases. Droid App