DEYAI (Municipal Water Supply and Sewerage Utility of Ioannina) is the authority responsible for providing water supply and sewerage services at Ioannina.

DEYAI entrusted the development of its official website to Wapp, which created a modern and user-friendly platform to promote its services and initiatives.

Through the website, visitors can learn about DEYAI's services, make payments, and communicate with the organization via an online contact form.

Wapp also create a custom website design specifically to meet the needs of DEYAI, ensuring a seamless user experience that aligns with the organization's objectives.

The development of the website was based on responsive web design technologies, so that the website can adapt on different screen sizes of mobile phones, tablets, notebook and desktop computers. This way all website visitors have the same user experience, regardless of how they access it.

However, particular care has been taken in relation to SEO on website , so that via the content management system, every single page automatically sends all necessary information that search engines need.