Rownd is a software infrastructure company focused on authentication, user management, subscriptions, and deep linking for mobile and web applications. Founded in 2022 and a graduate of Y Combinator's W2022 batch, the company provides tools that enable businesses to implement and manage user authentication without extensive development effort. Rownd's core offering centers on streamlining the authentication layer for apps, allowing developers and product teams to integrate sign-in flows, user profile management, and related identity functions into their products. The platform is designed to reduce the engineering overhead typically associated with building and maintaining authentication systems from scratch. Beyond authentication, Rownd extends its infrastructure to cover adjacent app services such as subscription management and deep linking, positioning itself as a broader app-launch and scaling toolkit. The company targets businesses building consumer or business-facing applications who want to offload identity and user management infrastructure. The platform emphasizes a low-friction user experience, aiming to minimize the steps end users must take to access apps, while giving companies administrative control and visibility over their user base. Rownd offers a self-serve onboarding path as well as demo-based sales engagement, suggesting it serves a range of company sizes from startups to more established product teams.