Hey Product Hunt! 👋 I’m Rob Thelen, co-founder & CEO of Rownd (YC W22). We’re launching a free tier up to 1 M MAUs—why 1 M? Because teams need runway to scale without per-user ransom notes. I have built hundreds of AI-assisted apps (vibe coding is my passion), and the thing that often goes wrong is the app plumbing - authentication, authorization, user management, payments, etc. The Rownd App Services Platform solves that problem. 🔑 One SDK, five Core Pillars 🔐 Authentication (passwordless, social, SAML/OIDC, adaptive MFA) 💬 Smart Links (make your own Branch-link links, for 1/100 of the price) 💳 Payments & Subscriptions (Stripe integration in <10s, metered billing, portal UI, renewals) 👥 User Management (profiles, roles, permissions, webhooks) 🔋 All batteries included - Rownd's frontend SDKs come with all the necessary visual elements - login, signup, sign-out, profile, subscription management, etc. 🌱 Why We Did It AI-powered “vibe coding” teams can prototype full apps in minutes, but the plumbing underneath remains brittle and costly. We built Rownd so you can focus on your unique value, not boilerplate. Our freemium flywheel has already driven enterprise-scale growth, and this 1 M MAU launch is just the beginning. Set up user management, authentication, and payments in one prompt. Ask me anything—Stripe setup, MCP roadmap, compliance at scale, or your toughest integration pain. Thanks for checking us out—your feedback will shape Rownd’s next chapter!