If u are not using paytm for recharge then please go to a website and try this bcoz it really fast and easy to used no other app is better then paytm bcoz its gives you a lot of payment options and if I talk about free charge than free charge is providing limited payment options.
If u have a smartphone then you can be used paytm app into your smartphone its easy fast and reliable for you bank security and u can log in with facebook as well into it.