ThiccClub
ThiccClub is a social workout accountability app. You create a private community with your friends, log daily health stats, and watch each other's progress on charts. Any member can build a macro plan or workout routine for the whole group, or for one specific friend who needs a hand, and there are free tools like a macro calculator, macro tracker, and exercise how-to library that work with or without an account.
It's built with Next.js, Prisma, and PostgreSQL, with Clerk for auth and Stripe for billing once a community grows past the free member limit.