Prometheus is web-based fitness coaching and studio management software for personal trainers, online coaches, gyms and single-location fitness studios. Coaches can build training programs and nutrition plans, manage client check-ins and messages, review exercise videos with annotations, hold video calls, and issue invoices or recurring subscriptions. Clients use companion iPhone and Android apps to view programs, log workouts, track nutrition, share progress and receive coach feedback. Studio Light adds member check-in, class schedules and bookings, waitlists, memberships, recurring billing, point-of-sale sales, shift planning, invoices and bookkeeping in the same account. Plans start at $19 per month for up to five coaching clients; higher client-count tiers are available, and Studio Light is $79 per month. Annual payment provides two months free. New accounts can try the service for 14 days without a payment card.