People who are deaf or hard of hearing face the challenge of interacting with others in real-life situations and are often excluded from accessing information in society. The EU-funded SignON project aims to develop a mobile application that will translate between different European sign and verbal languages. The application, a lightweight software running on a standard mobile device, will interact with a cloud-based distributed framework dedicated to the computationally heavy tasks. The application and the framework will be designed through a co-creation approach where users will work together with the SignON researchers and engineers. The application will be easily adaptable to other languages (sign and spoken) and modalities and will ultimately promote equitable exchange of information among all European citizens.