What is Whatsapp?
WhatsApp Messenger is a multi-platform mobile messaging app to exchange text (or voice) messages without paying for SMS, which can be installed mostly on any smartphone or mobile device for free.
How to Download Whatsapp on your phone?
WhatsApp Messenger can be downloaded and installed on traditional phone and smartphone like the BlackBerry, Nokia, iPhone, Samsung or any other Android, Windows or Ubuntu phone.
What if I have an old phone?
If you own an old phone or have any trouble downloading and installing Whatsapp, then follow read this specific tutorial for Java, Symbian or even for Bada Os . If you have an old Nokia smartphone click here or if you have troubles installing Whatsapp on a Samsung device click here.