WhatsApp has just now extended the time you have to delete your messages from your chats after you hit send to 2 days 12 hours. And much more: Share location and places, Exchange contacts, Custom wallpaper, Custom notification sounds, Landscape mode, Message timestamps, Email chat history, Broadcast messages and media to many contacts at once, and much much more.Offline Messages: Even if you miss your push notifications or turn off your iPhone, WhatsApp will save your messages offline until you retrieve them during the next application use.Your contacts who already have WhatsApp Messenger will be automatically displayed under Favorites, similar to a buddy list. No need to add buddies: Your Address Book is used to automatically connect you with your contacts.With push notifications WhatsApp is always on and always connected.

No need to log in/out: No more confusion about getting logged off from another computer or device.

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.

Chat with your friends all over the world as long as they have WhatsApp Messenger installed and avoid those pesky international SMS costs.

No international charges: Just like there is no added cost to send an international email, there is no cost to send WhatsApp messages internationally.

Personal: Set a profile photo which will be shown to all your contacts.

Add or Remove group participants, change group subject and set a group icon.

Group Chat: Enjoy group conversations with your contacts.

Multimedia: Send Video, Images, and Voice notes to your friends and contacts.Send a million messages a day to your friends for free! WhatsApp uses your Internet connection: Edge/3G/4G or Wi-Fi when available. No hidden costs: Once you and your friends download the application, you can use it to chat as much as you want.

Free whatsapp for samsung tablet