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Multi-tenant SaaS

GymOS

An all-in-one platform for boxing, BJJ and MMA gyms: memberships and billing, class scheduling, athlete progress tracking, check-in and a branded website, for single gyms and multi-location franchises.

View live project (opens in a new tab)The live link is a demo environment with sample data that resets daily.

The challenge

Combat-sports gyms typically juggle separate tools for memberships, billing, class schedules, coaching notes, merchandise and marketing. Owners wanted one system that fits how gyms actually run, multi-location franchises included, without losing their own brand.

The solution

GymOS is a multi-tenant platform where every gym gets its own branded space on a shared, secure codebase. Owners, front-desk staff, coaches and members each get tools built for their role, and franchise owners can see across locations.

What was built

  • Every gym gets its own subdomain, with support for verified custom domains
  • Stripe Connect billing for dues, commitment terms, joining fees and refunds, paid directly to each gym
  • Class scheduling with recurrence and automated SMS class reminders
  • Skill-tree athlete progression with coach evaluations and reusable templates
  • Kiosk check-in and a front-desk console
  • Merch store with cart and orders
  • AI-generated social captions and scheduled social posting
  • Public REST API with API keys, plus an MCP server that lets AI assistants work with gym data
  • Franchise analytics, leaderboards, affiliate program and audit logs with CSV/PDF export
  • Separate roles for gym admins, staff, coaches, members and platform operators

More work

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