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    GymApp — Fitness & Gym Management SaaS

    Built GymApp — a multi-tenant fitness and gym management SaaS platform that replaces fragmented tools with a single solution for class scheduling, QR code check-ins, automated billing, workout tracking, and member management. Designed to scale from single boutique studios to multi-location franchises.

    Client

    GymApp

    Project Value

    $55,000+

    Rating

    5.0/5.0
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    GymApp — Fitness & Gym Management SaaS

    The Challenge

    The fitness studio and gym management market in 2023 was characterized by two deeply unsatisfying options: fragmented point solutions or legacy enterprise platforms built for hotel chains that were grossly over-engineered for boutique studios and regional gym chains. The incumbent players — Mindbody, Glofox, and Zen Planner — dominated the market but shared the same core problems: expensive per-location licensing, no white-label options, limited API access, and interfaces that had not meaningfully evolved in years. Operationally, gym owners were stitching together 4–6 separate tools to run their business. Member management lived in one system, class scheduling in another, billing was handled through a disconnected payment gateway, workout tracking was done via a separate app (or a paper binder), and reporting required manually exporting CSVs from each system and reconciling them in a spreadsheet. Front-desk staff were navigating multiple browser tabs simultaneously to check a member in, verify their membership status, and process a drop-in payment. Specific pain points were severe and measurable. Class no-shows averaged 30–40% of booked capacity at busy studios — because the booking process had no friction and members faced no consequence for not attending. Trainer scheduling conflicts were resolved manually via WhatsApp and spreadsheets, with no visibility into which trainer was assigned to which class until the coach arrived at the studio. Payment collection delays were endemic: membership renewals were tracked in spreadsheets, renewal reminders were sent manually, and failed payments were followed up by phone calls from the front desk — consuming 6–10 hours of admin time per week per location. Member check-in queues were a consistent source of negative reviews on Google and Yelp. A typical boutique studio handling 25–40 members per peak-hour class saw front-desk queues of 8–12 people, each requiring a manual search of the member database, membership verification, and waiver confirmation. This experience was the first touchpoint members had when they arrived for a workout — and it was setting a negative tone before the class started. The specific client requirement that defined this project was not simply to rebuild a better gym management tool — it was to build a white-label platform that the client could license to gym chains under their own branding. The client had 4 gym locations of their own and relationships with 20+ independent gym operators in their network who were paying for Mindbody licenses they found too expensive and too generic. The platform needed to support custom domain per tenant, configurable branding (logo, color scheme, typography), and the ability for the client to onboard new gym operators without any involvement from the development team. This white-label licensing requirement drove every architectural decision from the start.

    The Goal

    Design and ship a modern, production-grade fitness management SaaS with multi-tenant architecture, automated Stripe billing, class scheduling with waitlists, QR code member check-ins, custom workout tracking, and a 4-tier access control system (Super Admin, Gym Owner, Coach, Member) — with full white-labeling capabilities and a mobile-responsive member portal.

    Solution & Implementation

    1Analysis

    Conducted discovery sessions with gym owners, coaches, and members across boutique studios and larger fitness facilities. Identified five critical workflow failures: no unified dashboard for revenue and attendance, manual and error-prone billing processes leading to revenue leakage, clunky class scheduling that discouraged bookings, lack of integrated workout/PR tracking, and no proper role separation meaning coaches had unnecessary access to financial data. Benchmarked the top five competitor platforms — Mindbody, Glofox, Zen Planner, Pike13, and Wodify — to identify feature gaps and positioning opportunities. Found that none offered a true white-label architecture: all required gym operators to show the platform's own branding in the app. This gap was the core product opportunity.

    2Designing Solution

    The member-facing mobile app was built as a Flutter application targeting iOS and Android simultaneously — a single codebase delivering native performance on both platforms. The app features QR code check-in (unique QR generated per member, refreshed every 5 minutes to prevent screenshot sharing), class booking with one-tap confirmation and real-time waitlist position, progress tracking (members log PRs, view historical workout data, and track attendance streaks), and in-app trainer messaging via a WebSocket-based chat system. The Flutter app connects to the backend via a RESTful API with JWT authentication. The gym staff dashboard is a web application built in React 18 with TypeScript, delivering real-time occupancy data (active members currently in the gym, updated via WebSocket), class roster management (current bookings, waitlist, check-in confirmation), daily revenue summaries (membership renewals, drop-in payments, merchandise sales), and financial reporting (MRR trends, churn rate, class utilization by instructor and time slot). The white-label architecture was the most technically challenging component. Each gym tenant has its own subdomain (or custom domain via CNAME), its own logo and color scheme stored in a tenant configuration table, and its own branding applied dynamically at runtime. The Flutter app reads tenant configuration from the API on launch and applies the gym's brand theme before rendering any UI — so a member opening the app for Gold's Gym sees Gold's Gym branding, not the platform's own identity. Gym operators onboard themselves through a self-service admin portal without developer intervention. Multi-location support was architected using a hierarchical tenant model: a Gym Chain account has a Super Admin who can view consolidated reports across all locations, manage shared trainer rosters, and create location-specific pricing tiers. Each Location has its own Manager with access restricted to that location's data via Row-Level Security policies in PostgreSQL. A coach assigned to Location A cannot see Location B's member data even if they are employed by the same chain. Payment integration uses Stripe in two modes: Stripe Subscriptions handles recurring membership billing (monthly and annual plans, trial periods, automatic failed payment retry with dunning emails), and Stripe Connect enables the platform to facilitate payments for gym chains where the platform is the intermediary — each gym location receives payouts directly to their Stripe Connected Account, with platform fees withheld automatically. This Connect architecture was essential for the white-label licensing model. AI-powered features were added in the second phase of development. An attendance prediction model (trained on 6 months of historical booking and check-in data per class) predicts expected class attendance 48 hours in advance — enabling managers to add staff for high-attendance classes and cancel under-booked classes before the cancellation window closes. A churn prediction model identifies members who are at risk of not renewing (based on attendance frequency decline, booking cancellation rate, and days since last visit) and automatically triggers a retention workflow: a personalized email offering a discounted renewal, followed by a front-desk flag to greet the at-risk member personally on their next visit.

    3Customizing Business Logic

    The platform features a highly customizable white-label interface allowing each gym tenant to apply their own branding (logo, primary and secondary colors, typography, and hero imagery) through a no-code theme configuration panel. Custom domain support allows gym operators to serve the member portal from their own domain (e.g., members.goldsgym.com) with automatic SSL provisioning via Let's Encrypt. The admin dashboard presents real-time KPI cards for active members, monthly recurring revenue (MRR), and class attendance trends. The class scheduling module includes automated waitlists, per-class capacity limits, booking windows (how far in advance members can book), and cancellation policies (penalty for late cancellations enforced via the billing integration).

    4Scale & Optimize

    Implemented fully automated billing cycles via Stripe webhooks, eliminating the need to manually chase payments. Stripe's Smart Retries automatically reattempts failed subscription payments on the optimal day based on card network data — recovering an estimated 15–20% of failed renewals that would otherwise churn. Check-ins are streamlined using dynamic QR codes generated for each member, scanning instantly at the front desk via the staff app camera — reducing check-in time from an average of 45 seconds (manual database lookup) to under 8 seconds. The multi-tenant architecture ensures that multi-location owners can view consolidated reports across all their facilities while restricting local managers to their specific location. The 4-tier RBAC (Role-Based Access Control: Super Admin, Gym Owner, Coach, Member) ensures secure, minimal-privilege access across the entire platform.

    Results & Impact

    340% increase (3 months)

    Online Class Bookings

    28% reduction

    Member Churn Rate

    4.2/5.0 (2,400+ reviews)

    App Store Rating

    14 (US, UAE, Australia)

    Licensed Gym Chains

    $2.4M

    ARR in Year 2

    62% reduction

    Check-in Time

    99% on-time

    Payment Collection

    Multi-tenant RLS

    Architecture

    Multi-tenant architecture with per-organization Row-Level Security ensuring absolute data isolation across different gym franchises

    Automated Stripe subscription billing and Point-of-Sale (POS) integration for seamless, zero-touch payment collection

    Interactive class scheduling system with automated waitlists, capacity management, and self-serve member booking

    Dynamic QR code check-in system for rapid, frictionless member entry at the front desk

    Comprehensive workout tracking module allowing coaches to build custom programs and members to log Personal Records (PRs)

    4-tier Role-Based Access Control (Super Admin, Gym Owner, Coach, Member) enforcing strict security and data visibility rules

    Full white-labeling capabilities allowing gyms to use their own custom domain, logo, and brand colors

    Key Technologies

    React 18 + TypeScriptViteTailwind CSSSupabase (PostgreSQL, Auth)Row-Level Security (RBAC)Stripe Billing & ConnectQR Code Check-ins

    Project Gallery

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    "GymApp completely transformed how we run our studios. We replaced three different legacy systems with one unified platform. The automated billing handles itself, the members love how easy it is to book classes on their phones, and the QR check-ins have made our front desk operations incredibly smooth."
    G

    GymApp Platform

    GymApp

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