Sumeria is a French digital banking app from Lydia Solutions, aimed at individuals. It offers an interest-bearing account, budget and project accounts, virtual cards and a physical card, and an AI assistant called Sia. There is a free basic plan with paid tiers, and an optional paid add-on, Sumeria+. Sumeria launched in 2024 and took over the account and card services of the Lydia app; Lydia itself now focuses on transfers between friends. The service is delivered as a mobile app.
Sumeria's services are operated by Lydia Solutions, a French company with offices in Paris and other cities. Lydia Solutions is an e-money institution authorised by the French supervisor ACPR, and so not a bank. The sources consulted name no foreign owner and do not state where data is hosted. There is no open-source or self-hosted option. For European users the service falls under French and European supervision and the GDPR.