Pros:

• Add your friends and chat instantly. With features like Video Call you can directly chat with people who you think are interesting.
• No more obstacles. Either country, place, etc. You are free to interact with all registered people.
• There are various emoticons and cool animations. This is an additional feature to make it more interesting.
• 
  Regardless of whether or not the data obtained, but the adoption of this application was already very much.

Cons:

• Nothing, except the weakness usually in the application Smartphone (contain ads and purchases).

My Personal Opinion:

• In my opinion. Azar gives us the ability to socialize with everyone without unlimited barriers, and more interesting with emoticon features etc.