Here is the List Top 5 Best Free Android Online Messaging Apps:
With Viber, everyone in the world can connect. Freely. More than 460 million Viber users text, make HD-quality phone and video calls, and send photo and video messages worldwide over Wifi or 3G – for free. Viber Out can be used to make calls to non-Viber mobile and landline numbers at low rates. Viber is available for many smartphones and platforms.
Viber is compatible with and optimized for Android tablets! Use Viber on your tablet and phone simultaneously. On Viber, your phone number is your ID. The app syncs with your mobile contact list, automatically detecting which of your contacts have Viber.
Instantly reach the people in your life—for free. Messenger is just like texting, but you don’t have to pay for every message (it works with your data plan).
Not just for Facebook friends: Message people in your phone book and just enter a phone number to add a new contact.
Group chats: Create groups for the people you message most. Name them, set group photos and keep them all in one place.
Photos and videos: Shoot videos and snap selfies or other photos right from the app and send them with one tap.
Chat heads: Keep the conversation going while you use other apps.
Free calls: Talk as long as you want, even with people in other countries. (Calls are free over Wi-Fi. Otherwise, standard data charges apply.)
WeChat is a free messaging & calling app that allows you to easily connect with family & friends across countries. It’s the all-in-one communications app for free text (SMS/MMS), voice & video calls, moments, photo sharing, and games. WHY USE WECHAT:
ALWAYS FREE: No annual subscription fee. Absolutely free for life.
FREE VOICE & VIDEO CALLS: High-quality free calls to anywhere in the world.
GROUP CHAT: Create group chats with up to 100 people.
MULTIMEDIA MESSAGING: Send video, image, text, and voice messages.
STICKER GALLERY: Hundreds of free, fun, animated stickers to express your feelings from some of your favorite cartoons and movies.
MOMENTS: Share your best moments on your personal photo stream.
BETTER PRIVACY: WeChat gives you the highest level of control over your privacy. It’s the only messaging app to be certified by TRUSTe.
MEET NEW FRIENDS: Use “Friend Radar”, “People Nearby” and “Shake” to meet others.
Enjoy fast and fun mobile conversation! Snap a photo or a video, add a caption, and send it to a friend. They’ll view it, laugh, and then the Snap disappears from the screen – unless they take a screenshot!You can also add a Snap to your Story with one tap to share your day with all of your friends.The best conversations happen when both friends are present, so we’ll let you know if your friend is Here in your Chat so that you can give each other your full attention. And if you’re both Here, simply press and hold to share live video – and Chat face-to-face!
WhatsApp Messenger is a smartphone messenger available for Android and other smartphones. WhatsApp uses your 3G or WiFi (when available) to message with friends and family. Switch from SMS to WhatsApp to send and receive messages, pictures, audio notes, and video messages. First year FREE! ($0.99 USD/year after)
WHY USE WHATSAPP:
NO HIDDEN COST: Once you and your friends download the application, you can use it to chat as much as you want. Send a million messages a day to your friends for free! WhatsApp uses your Internet connection: 3G/EDGE or Wi-Fi when available.
MULTIMEDIA: Send Video, Images, and Voice notes to your friends and contacts.
GROUP CHAT: Enjoy group conversations with your contacts.