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Built for how you actually coach

Most coaches run their business across five or six different tools. Grostack replaces all of them — so you spend less time on admin and more time coaching.

Client Management

Every client in one place with profiles, progress, onboarding status, and risk detection. Invite clients with a single link.

  • See weight changes, form submissions, personal bests, habits, and photos on one dashboard
  • No switching between screens to get the full picture
  • Get notified about no-shows and inactivity so you catch people slipping early
  • Deliver pre-built or custom onboarding so clients start properly from day one
  • Bulk import clients with a CSV or Excel file from your current system

Programmes & Exercise Library

Build training programmes quickly with a drag-and-drop workout builder and a full exercise library.

  • Set standards with sets, reps, RPE, and rest periods
  • Create supersets, trisets, giant sets, EMOMs, AMRAPs, and circuits
  • Built-in exercise library with muscle group and equipment filters
  • Upload your own exercise tutorials and keep everything in one place
  • Assign programmes to individual clients or groups in seconds
  • Clients see their workout with video demos and log each set

Nutrition & Meal Planning

Create meal plans, set targets, and track adherence without using separate apps.

  • Clients log meals in-app and see their daily breakdown
  • Pre-built meal plan templates from 1,500 to 4,000 calories
  • Built-in food library so clients do not need external trackers
  • Monitor calories and macros daily so you know who is on track
  • Assign meal plans to individual clients or groups

Forms & Documents

Send intake forms, waivers, and check-ins directly to clients. Track every submission in one place.

  • Pre-built templates for PAR-Q, intake, liability waivers, and check-ins
  • Custom form builder with text, number, select, date, and signature fields
  • Send forms to individual clients or assign them during onboarding
  • Upload PDF or DOCX documents for download-and-acknowledge workflows
  • Track submission status and review responses from the client profile

Scheduling & Bookings

Run your schedule without constant messages or confusion.

  • Set availability for 1:1, 2:1, 3:1, small group, and group sessions
  • Lock access to programmes, meal plans, and sessions until consultation and PAR-Q forms are completed
  • Set cancellation policies and control how many sessions clients can use
  • Clients book themselves into available slots without messaging you
  • Schedule working hours, holidays, and time off so everything stays clear

Messaging & Notifications

Keep all coaching conversations organised and easy to manage.

  • Message clients and groups directly inside the platform
  • Keep your personal and work life separate
  • Set notification preferences for both coaches and clients
  • Real-time unread filters and a central notification centre
  • No more lost conversations across different apps

Automation & Systems

Remove manual work and keep your systems running consistently.

  • Build your setup step by step using the system builder
  • Use pre-built templates for common coaching processes
  • Automate onboarding, check-ins, and follow-ups without reminders
  • Control exactly who receives notifications and when

Branding & Client Portal

Make the platform yours. Set your brand colours, logo, and give clients an experience that feels like your own product. In-built at no cost to you.

  • Set your brand colours and upload your logo in minutes
  • Preview exactly what your clients see inside the app
  • Branded dashboards for both you and your clients
  • Progress photos, personal bests, and metrics on the client portal

Payments & Analytics

Know exactly what is coming in and how your business is performing.

  • Stripe integrated for simple payment handling
  • Track payments with clear status filters
  • See monthly revenue at a glance
  • Monitor revenue, client growth, and booking trends
  • Central dashboard to stay in control of your numbers

See it in action

Join the waitlist to get early access as soon as signups reopen.

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