m-Hepi is a free Android application designed for residential customers of HEP Supply. The app offers a range of useful features, including the ability to calculate savings on electricity bills, review accounts and payments, access invoices and slips, and view consumption data from previous periods. Additionally, users can review data on contracts and tariff models, access points in the Happy Club, and substitute Happy Club points for rewards. The app also allows for paying bills by credit card.

To use all the functionality of the app, users must create a user account and log in. With a secure and practical design, m-Hepi provides an easy way for HEP Supply customers to manage their electricity supply and payments all in one place.