Shipped a new app this month called Tuteee, an AI math tutor. Before I got into coding I was a math tutor for years, so I always wanted to build a math app at some point. AI's gotten good enough now that you can actually wrap a real tutor around it.
Revenue's at $18/mo across the three apps, up from $13. Tuteee is priced higher (around $9/month) since education is something people pay more for than my trackers ($0.99 to $2.99).
Going to keep going narrow. AI lets you wrap a vertical around a real domain, and a general chat window can't beat a focused app built by someone who knows the field. Math is the one I know, so the plan is to push Tuteee deeper into it.