User management, booking, payments, client tracking, notifications, and mobile app foundations already take too much product time.
Problems Fitbiz OS Solves
Fitness businesses don’t need more tools. They need one system that works together.
From coaches and admins to clients and owners, Fitbiz OS connects daily operations into one AI-powered operating system built for modern fitness businesses.
Build on Fitbiz OS
An ecosystem where fitness businesses, developers, and partners build on top of Fitbiz OS.
Most fitness tech builders waste months rebuilding basics like user management, booking systems, payments, client tracking, notifications, and iOS or Android app infrastructure. Time is lost building what already exists.
Fitbiz OS gives you a ready-to-use backend engine so you can focus on what makes your product unique.
Use a fitness-ready backend engine built for real operations in Singapore so your team can ship faster and build where your edge actually is.
$ curl -X GET https://api.fitbizos.com/v1/clients/{client_id}
$ curl -X POST https://api.fitbizos.com/v1/bookings
$ curl -X POST https://api.fitbizos.com/v1/payments/checkout
{
"modules": [
"users",
"booking",
"payments",
"tracking",
"notifications",
"mobile_app"
],
"access": "license-based",
"deployment": "fitness-ready"
}
What you get
A developer foundation built for real fitness operations.
Fitbiz OS gives technical teams a practical backend layer instead of forcing them to rebuild the same operational core from scratch.
The backend engine
A ready-to-use operational core built around real booking, member, coach, and payment flows.
Secure module access
Secure, license-based access to core modules without exposing business-critical internals.
Operational APIs
APIs for clients, coaching, scheduling, payments, and analytics that are designed for actual fitness workflows.
Scalable backend
Scalable backend built for real fitness operations instead of generic software use cases.
Plug-and-play base
A plug-and-play foundation that lets your team build its own UI, app, workflow layer, or product shell.
Faster go-to-market
Launch sooner and reduce heavy development cost by not rebuilding the same operational primitives again.
What we never share
Your ecosystem access never means your business data is exposed.
Fitbiz OS is designed as a secure ecosystem layer. Builder access does not mean cross-business visibility.
Never exposed to outside builders or reused across the ecosystem.
Not shared, repackaged, or made visible across operators or partner teams.
Financial data is not opened up as a reusable cross-ecosystem data layer.
Your internal scheduling, service delivery, and operational processes stay your own.
Your data is never exposed, reused, or shared across the ecosystem.
# Access model
license_scope: fitness-business-instance
sharing_mode: none
cross_business_visibility: false
financial_data_access: restricted
if request.scope not in allowed_modules:
deny_access()
if request.targets_other_business_data:
deny_access()
Developer ecosystem
Build on Fitbiz OS
We are opening our ecosystem to developers who want to build modules, extend features, integrate APIs, and create custom workflows on top of Fitbiz OS.
Build modules
Create products that plug into the Fitbiz OS operating layer.
Extend features
Develop tools that deepen coaching, nutrition, booking, or analytics workflows.
Integrate APIs
Connect devices, external applications, and internal systems through the ecosystem.
Create custom workflows
Launch tailored operational flows for different business models and partner use cases.
API ACCESS
MODULE BUILDER
SDK READY
WORKFLOWS
REVENUE SHARING OPPORTUNITIES
Step 01/04
Who this is for
A fitness developer community with room for real products and real partnerships.
Fitbiz OS is not only for operators. It is also a foundation for technical teams, ecosystem partners, and niche builders inside fitness.
Fitness tech startups
Ship faster without spending months rebuilding the same operations layer again.
Niche app developers
Build focused products on top of a ready fitness backend instead of rebuilding the basics.
Agencies for gyms
Create custom solutions for studios and gyms using a more stable technical foundation.
Hardware and IoT teams
Connect devices, assessments, or smart gym systems into a real operator workflow.
Community builders
Build new value on top of a connected platform that already understands fitness operations.
Ecosystem partners
Work with Fitbiz OS as a partner layer instead of a closed tool that blocks collaboration.
Problems by role
See each problem next to the system that solves it.
Fitbiz OS helps every part of a fitness business move from fragmented work to one connected operating system that is easier to run, easier to scale, and easier to trust.
👉 Clients stay consistent because everything is simple and visible
Client App
Run onboarding, tracking, nutrition inputs, and workout delivery in one client-facing experience designed to improve consistency and retention.
- AI onboarding
- Daily tracking
- Meal AI
- Workout logs
- Coach queue, assignments, approvals
👉 Coaches spend less time managing, more time coaching
Coach System
Give coaches one place to manage client delivery, scheduling, diet generation, workout assignment, and progress follow-up without admin overload.
- Client management
- Session scheduling
- AI diet generation
- Progress tracking
👉 No more switching between systems or guessing performance
Admin Dashboard
Give operators a real-time command layer for business visibility across growth, revenue, staff performance, and service execution.
- Live analytics
- Client growth
- Revenue insights
- Coach performance
👉 No manual calorie counting needed
AI Nutrition Engine
Turn meal tracking, macro calculation, and plan generation into a connected intelligence layer instead of a manual coach task.
- Image recognition
- Macro tracking
- Diet generation
- Nutrition workflows
👉 Your business, your branded app
Branded App
Launch a premium client experience across Android and iOS with your own brand, workflow, and service model built in.
- Android
- iOS
- Client experience
- White-label delivery
👉 Know exactly where your revenue stands
Payments
Collect payments inside the operating system with zero platform fee so revenue stays closer to the business.
- 0% platform fee
- Collections
- Revenue flow
- In-platform billing
👉 Stay connected with members without manual follow-ups
Marketing
Create offers, engage leads, convert more clients, and bring inactive members back through smarter lifecycle workflows.
- Offers
- Engagement
- Reactivation
- Lead conversion
👉 Streamline staff coordination and management
Staff Management
Coordinate staff visibility, coach operations, team roles, and internal execution from one control layer.
- Team roles
- Coach ops
- Attendance
- Team control
👉 Booking & Scheduling simplified
Booking & Scheduling
Handle consultations, recurring bookings, conflict prevention, and daily service schedules without switching tools.
- Bookings
- Scheduling
- Conflict checks
- Recurring flows
👉 No more switching between systems or guessing performance
Reporting
Track performance, revenue, retention, service quality, and operational health with reporting built into the platform.
- Revenue
- Retention
- Performance
- Operational health
👉 Clients and coaches both see real progress
Progress Tracking
Give clients and coaches a shared view of outcomes through performance graphs, body metrics, workout history, and visible progress over time.
- Client progress
- Performance graphs
- Body metrics
- Workout history
👉 Stay connected without manual messaging
Push Notifications
Keep members informed with in-app, WhatsApp, and email communication for updates, coach instructions, offers, and operational alerts.
- Personalized messaging
- Mass notifications
- Coach instructions
- WhatsApp + email
👉 Connect your fitness stack effortlessly
Integration & API
Connect devices, external app connections, and custom workflows into the same operating layer built for serious fitness operators.
- Device integrations
- Custom workflows
- External app integrations
- Developer ecosystem
Closing CTA
Stop running your fitness business from scattered tools.
Fitbiz OS brings coaching, clients, scheduling, payments, nutrition, renewals, and analytics into one connected system so your team can run smoother and your business can grow stronger.