Requirements: Android v2.1+
Overview: WhatsApp Messenger is a smartphone messenger available for Android, BlackBerry, iPhone, Windows Phone and Nokia phones.
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! ($1.99/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.
★ NO INTERNATIONAL CHARGES: Just like there is no added cost to send an international email, there is no cost to send WhatsApp messages internationally. Chat with your friends all over the world as long as they have WhatsApp Messenger installed and avoid those pesky international SMS costs.
★ SAY NO TO PINS AND USERNAMES: Why even bother having to remember yet another PIN or username? WhatsApp works with your phone number, just like SMS would, and integrates flawlessly with your existing phone address book.
★ NO NEED TO LOG IN/OUT: No more confusion about getting logged off from another computer or device. With push notifications WhatsApp is ALWAYS ON and ALWAYS CONNECTED.
★ NO NEED TO ADD BUDDIES: Your Address Book is used to automatically connect you with your contacts. Your contacts who already have WhatsApp Messenger will be automatically displayed under Favorites, similar to a buddy list. (You can of course always edit Favorites any way you like)
★ OFFLINE MESSAGES: Even if you miss your push notifications or turn off your phone, WhatsApp will save your messages offline until you retrieve them during the next application use.
★ AND MUCH MORE: Share location, Exchange contacts, Custom wallpaper, Custom notification sounds, Landscape mode, Precise message time stamps, Email chat history, Broadcast messages and MMS to many contacts at once and much much more!
What's in this version:
Many many many bug fixes and improvements for typing notifications, last
seen, ICS Phones, interface glitches, setting status and crashes.
All group members may change group photo.
Replace conversation sound setting with toggle button.
Raise group chat limit to 15 members.
Added delete account functionality.
Removed message timestamp setting.
Updated translations and localizations.
Changelog v1.5 (25/05/2012)
Changelog v1.4 (21/05/2012)
- New color picker widget. More functional, adding RGB y HEX entries. Also includes a recent colors list
- Color picker for send button added
- 6 different colors available now for notification iconón ( not possible to set its color using color picker)
- You can go back to old color picker widget. Option added in "Other MODs"
- In HoLo version, option to set default header size in Chat Screen, better for small screens (also changes send button to stock)
- Botton background color mod in chat screen added
- Text entry background color mod added (not for ICS ROMs as this mod as no effect at all)
- Some options disabled for HoLo version as are not needed
- Added toast message informing when WhatsApp has to be rebooted in order to see the changes
- Also informs when default background has to be set to see changes in chat screen
Credits to rafalense