GooglePay
PhonePe
Paytm
Razorpay
Unique Payment Interface
Unanimous Payment Interface
Universal Payment Interface
Unified Payment Interface
Traditional landline phones
Smartphones with a QR scanner app
Analog cameras
Fax machines
To store physical documents securely
To track financial transactions
To provide online shopping
To provide secure online storage for important personal and government documents
Online utility payments
Movie ticket booking
Social media account management
Food delivery