In collaboration with E.ON Hrvatska, we built the first solution on the Croatian market that combines electricity and gas management in a single app and offers AI-powered meter readings.
Energy powers almost every moment of modern life, yet the tools people use to manage it often feel stuck in the past. On the Croatian market, not all energy providers offer a digital experience, and those that do usually provide only basic functionality. For many customers, everyday tasks like checking payment status or submitting meter readings still mean calling customer support or visiting a physical branch.
E.ON Hrvatska saw an opportunity to change that.
Digital experience that matches the energy of a leading brand
E.ON Hrvatska is the Croatian branch of the E.ON Group, one of Europe’s largest energy providers serving more than 47 million customers. The company supplies electricity and gas to households and businesses across Croatia while expanding its portfolio with solar energy solutions and EV-related services.
As an ambitious and fast-growing player on the Croatian market, E.ON wanted its digital presence to reflect its commitment to innovation, customer care, and the green transition. They’re on a mission to push the industry’s boundaries and advance innovation to solve Europe’s most pressing energy challenges. But their existing mobile app didn’t reflect that ambition.
The app offered limited functionality and delivered a frustrating user experience. With low App Store ratings and frequent customer requests for a better solution, it became clear that the app needed a complete rebuild.
Setting a new benchmark for utility apps
In 2025, E.ON Hrvatska partnered with Infinum to redesign and rebuild their mobile platform from scratch. In just five months, we delivered a high-impact MVP that reimagines how customers interact with their energy provider. The new app allows users to track gas and electricity consumption, submit meter readings, and manage their bills within a single, intuitive interface.
By combining a seamless user experience with powerful self-service capabilities, the platform simplifies everyday energy management while reducing pressure on E.ON’s customer support center.
Results followed quickly after launch. App Store ratings more than doubled, a clear signal that customers were finally getting the experience they had been waiting for. Customer behavior shifted as well. All new app users opted for e-billing, directly supporting E.ON Hrvatska’s sustainability agenda.
Smarter energy management powered by AI
The new platform also introduces practical AI features designed to reduce manual input and speed up routine tasks.
Users can now submit gas and electricity meter readings simply by taking a photo. A large language model processes the image, extracts the numbers from the meter, and pre-fills the submission form inside the app. This is especially useful when meters are located in difficult-to-reach places or when lighting conditions make manual entry inconvenient.
The same technology also powers another feature: scanning an ID card to update personal information within the app.
Although the technology behind the app is complex, the interface is designed to make energy management easy for everyone — from tech-savvy younger users to older customers with limited digital experience.
The future looks bright
The collaboration between Infinum and E.ON Hrvatska continues with an ambitious roadmap ahead. Soon, customers will be able to message E.ON directly through the app, pay bills without leaving the platform, receive estimated bill calculations, and request refunds in just a few taps. Future releases will also expand access to smaller B2B customers and introduce real-time tracking for solar energy projects, giving users greater transparency into their transition to renewable energy.
Energy management apps are usually opened only when a bill arrives or when it’s time to submit a meter reading. Together with E.ON, we’re working to change that. The next phase will gradually transform the platform from a simple self-service tool into a full customer engagement and sales platform.
PROJECT MANAGER, INFINUM
For more details on the project, read the full case study. If your business faces a similar challenge, contact us to learn how we can turn that challenge into an innovative digital product that propels your business forward.