There are so many paymet app oike patym but Paytm is more frequently use and most of the shops are using paytm than other apps. I am using this from 3 years. Its very useful app for doing mobile recharge. You will also get some cashback and many more other offers. There is some problem regarding to special recharge, but overall it is usefull for other purposes too like paying in hotels, tickit booking, Bills.My all family mebmers also use paytm.