u/NewBlock8420

I built https://promptoptimizer.tools as a side project. Takes a vague prompt, rewrites it into something more structured. Free, no signup. It's processed 71,000+ optimizations so far.

It's at the point where I'd like to make it sustainable, so I'm thinking about a Pro tier. Before I build anything, I want to ask the people who'd actually use a tool like this:

1. What features would be worth paying for? Realistic price range $5-15/month.

Some things I've been considering:

- Saved prompt library with tags and search (current history is just localStorage, capped at 20)
- Browser extension to optimize prompts directly inside ChatGPT/Claude/Gemini
- Premium model on Pro tier (better backend than current)
- Prompt templates organized by use case
- Export options (download as PDF, markdown, .txt, share link)
- Something else I'm missing?

2. What pricing model would get you to pay?

- Monthly subscription (~$9/mo)
- Annual (~$79/yr)
- One-time lifetime deal (~$59)
- Other?

Not pitching anything. Whatever pattern shows up in the replies is probably what I'll build first. Free tier stays free either way.

Thanks for any input.