UsageGate tells your app if a user can still use a feature. Example: Hobby = 20 AI image cleanups. Studio = 400. Before you run the cleanup, you ask UsageGate. Yes → run it. No → block it. You do not build counters, databases, or “did they pay?” logic. You write the plans. UsageGate enforces them. For Next.js. Free to start. usagegate.io