Belgium’s leading telecom provider adopts Mendix to improve customer engagement in the native mobile app Proximus+

Proximus, a leading Belgian provider of digital services and communication solutions, has selected Mendix, a Siemens company, to create the new super-app, Proximus+. This innovative application serves as a centralized hub for millions of consumers to access a wide range of services, not limited to telecommunications, within the Proximus ecosystem of partners and suppliers. Developed with Mendix’s low code platform in just one year, Proximus+ seamlessly integrates six existing React Native applications into a unified native mobile user experience. The application reinforces Proximus’s competitive edge and bolsters its leadership in the market.

Proximus, with its 2.8 million customers, including 1.1 million convergent ones, faced the challenge of fragmented customer experience due to various customer-facing solutions. Outdated systems and slow development cycles further hindered the company’s ability to differentiate itself. To overcome these challenges, Proximus decided to consolidate its application ecosystem into a single “super app” using the efficient low-code development methodology.  After a rigorous vendor selection process, Proximus chose the Mendix platform.

Georgi van Droogenbroeck, product owner for Consumer Strategy and Digital Ecosystems, explains the decision to choose Mendix: ‘The platform’s flexibility was a key factor. It not only offers excellent opportunities for seamless expansion but also its native mobile capability, built on React Native, allows us to develop specific widgets tailored to our needs. Given our extensive customization requirements, being able to leverage React Native and build upon our existing in-house skills was a significant advantage.’

The flexibility of Mendix platform aligns closely with Proximity’s business strategy

Proximus leadership team recognized that the Mendix platform supported the company’s business strategy of becoming more agile. Development with Mendix seamlessly integrates with the collaborative, iterative nature of agile development, which was gaining popularity within Proximus. Additionally, using the Mendix platform helped Proximus become more agile by enabling the creation of a reusable and composable ecosystem of app functionality and design elements, all while maintaining robust security.

Developed within a year by a cross-functional, agile team of developers, designers, and business stakeholders, Proximus+ consolidates six existing React Native applications into one native mobile user experience. “Mendix is a great facilitator for agile working. As we worked with cross-functional teams on the platform, we saw that the gap between business, design, and IT narrowed, ensuring everyone was working towards the same vision,”  Van Droogenbroeck said.

At Proximus, the cross-functional teams using Mendix comprise over 40 individuals with different backgrounds. This close collaboration is already sparking new ideas for enhancing various aspects such as the shopping experience, sales tools, and loyalty programs. According to Van Droogenbroeck, “Reinventing ourselves was necessary to maintain relevance to our users. We chose low code to address this complex challenge deliberately. The reusability, shortened time-to-market and cost-effectiveness of Mendix directly impact how we develop our customer experience and manage our business. The results we’ve seen thus far have been pleasantly surprising.”

Proximus+ was recently introduced as an upgrade to the existing MyProximus app, which already had 1.3 million users. With Proximus+, customers can access digital services such as “Neighborhood,” where they can connect with their community and share tips or events. The app also offers mobility services, such as buying train tickets, viewing transportation schedules, or paying for parking transactions.

Mendix facilitates platform strategy

Developing Proximus+ with low-code not only addresses current challenges but also provides flexibility to evolve in the future. Low-code accelerates time-to-market by enabling Proximus to work in a controlled manner, further developing the ecosystem with reusable integrations and functionality.

“As we enhance the Proximus+ offering, our aim is to move from an application-centric approach to a platform-centric one that connects our customers and partners. This represents a future evolution in mitigating customer frustration caused by the multitude of applications. Customers can rely on Proximus+ as the single, secure gateway to the services they need. We believe that Mendix has all the necessary capabilities to facilitate this platform strategy in the future,” said Tina Hernalsteen, Ecosystem Lead at Proximus.

About Mendix

Mendix is a leading low-code agentic development platform. For industrial organizations, Mendix’s full capabilities are delivered as part of Intelligence Center X, Siemens’ agentic enterprise system — turning industrial AI into measurable outcomes with shared context, orchestration, agentic development and governance.