I’m planning to develop a Candy AI Clone — an AI companion/chatbot app that offers engaging, emotional, and potentially NSFW interactions. The concept is to give users personalized digital relationships, kind of like what Candy AI offers, but with custom features and branding.

Right now, I'm figuring out the scope, timeline, and cost. I came across a few tools, but I'm still looking for a reliable Mobile App Development Cost Calculator to get an accurate estimate for MVP vs. full version.

Also looking for advice on:

Best AI APIs or models for emotional conversation and long-term memory

Voice/chat integration tools

How to structure subscription-based monetization

SEO/marketing strategies (especially if it's semi-adult or niche focused)

If you’ve worked on similar AI chatbot projects or know of any helpful tools or dev teams, feel free to drop your thoughts below or DM me. Appreciate the help!