AI for fitness that handles the work around the workouts
Drafts member emails, retention sequences, and onboarding flows in your studio's voice.
Builds programme content, workout descriptions, and class schedules.
Brain AI holds your programmes, member data, and studio philosophy.
Every fitness business workflow in one platform
Fitness businesses run on coaching and on the member comms, programme design, and retention work that holds them together. Sintra runs that wrap-around work for you. Twelve specialised functions across member comms, programme content, scheduling, and retention, all sharing your programmes and studio voice through Brain AI.
What slows down a fitness business
AI for fitness should free up coaching time, not add another tool. These are the drains every studio runs into.
Member churn is the silent killer
Member signs up enthusiastic, comes for three weeks, fades. By the time anyone notices, the membership is gone.
Programme content takes a Sunday
Each new programme needs workouts, descriptions, video scripts. The work that should be on coaching sits in a Google Doc on Sunday.
Class scheduling eats admin time
Confirmations, cancellations, waitlist management. Each one is a quick email. They add up.
Member milestones go uncelebrated
Hundredth class, one-year anniversary, deadlift PR. The members who get a message stay; the ones who don't, drift.
Marketing is bursty
When the studio is full, marketing stops. Three months later attendance dips and the catch-up begins.
Coach onboarding takes weeks
New coach needs the programme library, the studio philosophy, the member context. The senior coach trains them on the floor instead of training members.
How AI for fitness runs your studio, function by function
Each role is built for one part of the studio side. Brain AI holds your programmes, member data, and studio philosophy.
Draft member onboarding and retention emails
Build programme descriptions and workout content
Manage class confirmations and waitlists
Send member milestone messages
Schedule social content and member spotlights
Pull weekly retention and attendance reports
Generate coach onboarding briefs
Audit the studio website and booking flows
How studios actually use AI for fitness
Five workflows that move retention from luck to system.
Member retention
AI flags every member who hasn't attended in two weeks and drafts the right re-engagement message: a check-in if they were a regular, a reactivation if they were drifting. Churn drops.
Programme launch
Drop the new programme into Brain AI. AI drafts workout descriptions, the member announcement, the social campaign, and the booking page. Programme launches happen on schedule.
Class management
AI handles class confirmations, waitlist movement, and cancellation rebooking. The studio manager's morning empties.
Member milestones
AI tracks member milestones and drafts the celebration message in your studio's voice. Personal recognition stops depending on the memory of one staff member.
Coach training
Drop the new coach's profile into Brain AI. AI builds the onboarding brief from your programme library and studio philosophy.
Twelve AI tools for fitness, one subscription
Each role is built for one part of studio work. They share your programmes, member data, and philosophy through Brain AI.
Brain AI keeps every message in your studio's voice
Drop your programmes, member profiles, studio philosophy, and past best-performing comms into Brain AI. Every output reads from it before it writes. The retention email, the milestone message, the programme launch all reflect your studio because they share one source. 93% of users see response accuracy improve once Brain AI is populated.
93%
Of users report increase in response accuracy after filling Brain AI.
5.2 hours
Saved for users per week by eliminating repetitive context-setting.
As users continue to engage with Brain AI, they experience ongoing improvement in their critical thinking skills and cognitive abilities.
Plugs into the fitness studio stack you already use
Google
Drive
Gmail
Google Calendar
Outlook
Notion
Quickbooks
Microsoft
Strava
Google
Analytics
Google
Drive
Gmail
Google Calendar
Outlook
Notion
Quickbooks
Microsoft
Strava
Google
Analytics
Google
Drive
Gmail
Google Calendar
Outlook
Notion
Quickbooks
Microsoft
Strava
Google
Analytics
How to start
Three steps from sign-up to your first re-engaged member.
Connect your stack
Link your booking system, email, and social channels. Set up takes ten minutes.
Fill Brain AI
Drop in your programmes, member data, and studio voice notes.
Run the first re-engagement
Ask AI to draft re-engagement for members who haven't attended in two weeks. Real output before evening classes.
With great powers
comes great privacy.
Encrypted by design
From your first login to the last addition in your business knowledge vault, every interaction is encrypted in transit and at rest. This means that neither Sintra nor any third party can access your files or analytics.
Full Data Ownership
"Your content, your strategy, your AI - they belong entirely to you. At any time, you can delete your data or export it. We don’t train models on it or resell it, and your Brain AI is built exclusively on your own assets.
GDPR Compliant
We follow the highest standards of data protection under the GDPR framework. Your personal information is collected and stored transparently - with clear rights to access, modify, or delete your data at any time.
Pricing built for fitness studios
One subscription gives you all 12 functions, Brain AI, and the full integration list. No per-member fees, no per-class charges. 14-day money-back guarantee on your first paid month.
Used by more than
50,000+ founders.
I can’t recommend SintraAI enough. It’s like having a personal business coach 24/7, mapping out steps to grow my company and clarifying my priorities. I feel a renewed sense of focus and control every day.
December 29, 2024 • Socrate Concepcion • US
Each AI bot tackles my to-do list, from scheduling tasks to crawling my website for SEO tips. I love how it set up calendar reminders for all my commitments. Sintra.ai is well worth every penny, especially for a busy single-person business.
December 14, 2024 • Jennifer Glenn • US
As an entrepreneur launching a new venture, Sintra.ai has made a real difference. The AI assistants are like personal staff I can rely on. And whenever I needed support, the team was on point. A must-try for any budding business!
December 21, 2024 • Custódio Barreiros • HU
I once had a large team, and although I loved my helpers, they needed constant motivation. With Sintra, there’s no drama, just new ideas that I can simply accept or reject. It’s a huge relief—100% recommended.
December 26, 2024 • Holly Wehde • US
Hiring Sintra was a great decision for my struggling boutique. They handle social media posts, guide my ads, and even offered a solution for double social media pages. Now I can focus on my inventory and customers.
December 17, 2024 • Michele Davis • US
Signed up for Sintra X—it felt overwhelming at first, but once it understood how I think, it turned into a creative powerhouse. Support is top-notch, and the daily integrations impress me.
Dec 10, 2024 • Sami Liftoff • US
I’m not usually one to give top marks, but once I got comfortable with Sintra’s 12 helpers, I was blown away by their efficiency. They churn out so many analytical ideas I have to pause and digest them. It’s sometimes overwhelming, but in a good way.
December 29, 2024 • lars • DK
Sintra integrates with all my favorite tools and these little helpers automate my tasks in a huge way. They actually learn my company’s style day by day. It’s a massive step up from generic AI chats.
December 30, 2024 • Michelangelo • IT
My life is simpler with Sintra. It handles content creation, next steps, brainstorming, and copy. I highly recommend it if you want to free up mental space for what truly matters in your business.
December 28, 2024 • Lionel D'Alvia • US
My “team” in Sintra knocks out tasks like magic, offering fresh ideas for efficiency and better customer outreach. It’s a relief knowing I have AI assistants ready to go around the clock.
December 31, 2024 • Kat Angelica • US
I’ve only been using Sintra for a couple of weeks, but the experience has been great—especially with the social media bot reaching out to me with new ideas. The pull model feels super proactive and makes me more confident in my daily tasks.
December 30, 2024 • Bayan Qandil • US
I challenge anyone to compare other platforms to Sintra.ai and their staff—you won’t find a better customer experience. Everyone is professional, responsive, and genuinely cares about helping. Truly top-notch!
December 28, 2024 • Timothy Montjoy • US
This platform helps me like a full-time employee would. As a startup, I can’t afford extra staff, so Sintra stepped in to handle complex tasks and free me up for big-picture thinking.
December 28, 2024 • Jules Kincaid • US
I’m juggling multiple hats in my business, and these 12 AI “helpers” lighten the load. They even crack jokes and celebrate milestones with me! I saved thousands in consultant fees by letting Sintra handle SEO and content tasks.
December 30, 2024 • Michelle Smith • US
This platform helps me like a full-time employee would. As a startup, I can’t afford extra staff, so Sintra stepped in to handle complex tasks and free me up for big-picture thinking.
December 24, 2024 • Domanic R.H • US
Data-Backed Results From Real Users
+37%
Revenue growth in the first 90 days
5x
Faster content production across all channels
20h
Saved weekly on admin, support, and content work
80%
Of repetitive tasks fully automated
Run your studio on AI
Twelve functions, one subscription, no extra admin hire. Get Sintra, drop your programmes into Brain AI, and see your first retention sequence by tomorrow's first class.
Frequenly asked questions
It integrates with the major fitness booking platforms via approved connections. The integration list keeps growing.
AI drafts in your studio's voice, and the staff approve before send. The customer experience feels like the studio.
AI catches early churn signals (attendance drops, missed renewals) and queues the right intervention. The studios that put intent into churn see reductions inside the first month.
Member data sits in encrypted Brain AI storage under standard SOC 2 controls. AI doesn't train on your data.
Single-coach studios get the highest leverage. The admin work that would justify a hire runs in the background. The 14-day money-back guarantee lets you find out.
PlayOS, Inc.
All rights reserved