JTC develops and implements remote banking service solutions for consumers and businesses based on the Salto platform with the ability to integrate custom third-party services into the final product. Salto.Rondata is a traditional online banking app for the consumer market that provides the bank’s customers with a wide range of functionality and services, which allows users to access the bank’s services through their mobile devices. This is an innovative platform for the development of electronic document management systems of any degree of complexity. In order to make sure that our hypotheses are correct and their respective solutions lead to the best possible user experience, we tested the product prototype on our focus group. The Salto platform allows for the customization of the app with brand elements and colors. The platform also provides the possibility to add functionality through custom developed modules.