CallPay is a smartphone application designed to manage incoming and outgoing calls efficiently. It offers features such as caller identification, call blocking, and flash messaging, in addition to basic call functions. To register, users need to provide basic information like name, mobile number, email, location, date of birth, Pin Code, and gender. Once registered, users grant permissions for call management, access to contacts, and sending flash messages. Notably, CallPay does not access passwords or credit card information.

This app targets the vast smartphone user base in India, aiming to provide a platform for digital marketing with AI-enabled campaigns. By leveraging community data, CallPay aims to revolutionize branding by offering companies cost-effective alternatives to traditional advertising methods. Currently available on Android in 700+ Indian cities, the app has ambitious plans to expand its user base to over 1 million by FY.