Hello friends.I have been using databack app since a very long time.from that time I have saved a lot of MB.actually this all works like this.when we used to surf on internet.or usesome particular applications.that this app provide us a percentage of data refunded of the total data used.then that refunded data can be used to recharge on any number.
And even there are many other use of this app.like we can track hiw much data used daily or we can even boost up our phone.
On whole a very good application as it only helps to save money.so it is a completely thums up for this application.
