I want to bring a small, focused SaaS to life that lets online store owners drop in their existing product copy and walk away with clearer, more compelling, SEO-ready descriptions— all powered by the OpenAI API. The emphasis is simplicity: users land on a clean web interface, paste or upload their text, click “Improve,” and receive an upgraded version almost immediately. A core piece of this build is subscription management. Customers will pay a flat monthly fee (around €30), so I need secure sign-up, automated billing, usage tracking, and an admin view where I can adjust plans or issue refunds without digging through code. Stripe or a similar PCI-compliant gateway is fine as long as renewals and failed-payment handling run smoothly. Beyond billing, the workflow should include: • Intuitive text input or file upload for descriptions • A call to the OpenAI API that returns multiple rewritten options • A polished, responsive UI that feels at home on desktop and mobile • Basic analytics so I can see active users and character counts in real time I’m happy with any modern stack—React, Vue, or Svelte on the front end, Node or Python on the back—so long as deployment stays lightweight and maintainable (think Render, Vercel, or a small Docker setup on AWS). Clear documentation, clean repo organization, and a straightforward hand-off are important; I intend to maintain the product after launch. If you’re comfortable weaving OpenAI into a streamlined subscription SaaS, let’s chat about timelines and the fastest route to an MVP we can both be proud of.