Wadja is a Mobile Social Network. Sign up with Wadja social networking and you get the FREE UNLIMITED SMS to your friends’ mobile phones over 500 networks and 200 countries.To send free SMS using Wadja.com, there is nothing to download or install. You just sign up and send free unlimited SMS (text message) to your Wadja friends. Once you add your mobile phone number to your Wadja profile, you can receive SMS from other Wadja users also. Wadja supports 80 character messages. There is no delivery confirmation.