I had been using paytm from last three years and was happy when they launched Waller services in paytm app itself. But after some time, they launched new app for wallet(50MB+ on iOS) which I had to install inorder to use its services. This is completely out of my understanding why they launched when things were going well itself. The app also crashes many times while scanning QR code at offline shops. I had already uninstalled as there are better and faster options are available.