Grappr -earn talktime is an android application which says that it will give free talktime to its user. You have to register with app and fill referal code of your friend. It doesnot give fair and genuine amount on compelting task. It gives only rs 2 per task which is fully a time waste. I would recomemd not to use this app as it is a time wastage.
Concept -It is based on concept of earning free talktime simply by downloading apps.
Layout and design-Old layout and design and does not seem to be attractive.
Features-You can refer your friend and download apps to earn talktime.
Usefulness- Not a useful app as it gives only a small amount on downloading apps and refering friends.