I used paytm till last 2 years, this app is very good and its service is also too good. Before paytm I was used mobikwik, both app are very good, I like both app and I used both. But paytm refunding policy is very good it work itself so I never face problem in this application so I can say that this app is very good for online recharge and may be in online shopping too. But I never use this application for shopping so I can't say anything about online shopping in this app. I hope my review is useful for you.