Here is a list of AI-built apps that you  may find useful

Base44 apps

• FIDE Chess Rating Companion – A precise, unofficial chess rating calculator designed to help players determine rating changes and performance estimates based on official FIDE formulas.
• PersonaPath MBTI – Unlock deep self-awareness and discover your ideal career path with our precision-engineered MBTI assessment and intelligent career-matching technology.
• Secret Cabinet – Board Game simulator –  A high-stakes, multiplayer political strategy game for 4-12 friends. Negotiate, bluff, and manage national crises while pursuing hidden, conflicting objectives in a dramatic cabinet room setting.
• FairLeague Scheduler – An intelligent tournament planning tool that generates fair, balanced match schedules for league play, ensuring equitable opponent strength and home-away rotation for all participating teams.
• Logic Ladder – Challenge your mind with a curated collection of logic puzzles and mathematical problems designed to sharpen your reasoning skills.

Replit

• Secret Cabinet – Board Game simulator (perhaps, better and more stable version than base44 equivalent). Available in English and in Greek!