Hi friends in this review I want to share my personal opinion on Whatsapp. First I want to say thanks for the person who introduced it because it has many excellent features.The major advantage is free from adds, really friends up to now I have not observed any single add on Whatsapp mobile screen.The concept was very good .and it has excellent layout and design. It has many excellent features like message chating, video calling and it gives more security for our personal messages.It is very usefulness. The video calling is possible even in 2g network also. With the help of Whatsapp we can connect to our friends and family members where ever they are around the world.One day all country people will united by Whatsapp.