Inarin Pay is a user-friendly smartphone application designed for Android devices that facilitates the use of the "Toyokawa Genki Electronic Support Voucher" and the "Premium Electronic Gift Certificate" at select stores in Toyokawa City. This app allows users to easily manage their vouchers and gift certificates, enhancing the shopping experience by enabling seamless transactions. Users can earn points by downloading the app and completing necessary registrations, making it a rewarding tool for local shoppers.

The app requires an internet connection to function, and users should be aware of potential communication fees. Points for the Premium Electronic Gift Certificate are processed upon entering the desired quantity and completing the payment via credit card or at convenience stores. In cases where demand exceeds supply, a lottery system is implemented. Furthermore, users can transfer their account details, including balance, to a new device by logging in with their existing credentials.