AI for startups that compounds the work between founders and the team
Drafts every customer touch and investor update in your team's voice through Brain AI.
Runs marketing, support, and sales operations across the early lifecycle.
Brain AI holds your product, customer segments, and approved messaging.
Every startup workflow in one platform
Startups run on focused execution and on the customer, sales, and operational work behind it. Sintra runs the wrap-around layer for you. Twelve specialised functions across customer comms, sales, marketing, and operations, all sharing your product and messaging through Brain AI.
What slows startups down across the stage
AI for startups should compound team capacity, not duplicate the tools you can afford. These are the drains every early team runs into.
Every function is understaffed
Marketing has one person. Sales has one person. Each function does the work of three.
Customer support eats the day
Growing customer base, fixed support capacity. The product team becomes the second-line support.
Sales outbound is inconsistent
Founder-led sales works until founder time runs out. Then the pipeline drops.
Content production lags growth
Need content for ads, sales, support, blog. Producing it takes capacity the team doesn't have.
Investor and board comms slip
Quarterly updates take hours of CEO time. They go out late and miss the moment.
Process documentation lags reality
Team processes get figured out, but never documented. Onboarding takes too long.
How AI for startups runs your operation, function by function
Each role is built for one part of early-team work. Brain AI holds your product, customers, and messaging.
Handle customer support across channels
Run sales outbound and follow-ups
Build content for marketing and sales
Draft investor updates and board materials
Generate process documentation as work happens
Pull weekly performance metrics
Schedule social and email campaigns
Audit team comms for consistency
How early teams actually use AI for startups
Five workflows that move the team from execution to compounding.
Customer support at scale
AI handles tier-1 support automatically, frees the team to focus on product and growth.
Sales outbound
AI runs the outbound that founders can't sustain. Pipeline keeps moving when founders are heads-down.
Content production
AI generates the marketing content, sales enablement, and support docs the team needs. Production scales with growth.
Investor cadence
AI drafts monthly investor updates from your metrics. The update goes out on schedule, every month.
Process docs
AI captures team decisions, drafts process documentation, and surfaces the gaps. The wiki stays current.
Twelve AI tools for startups, one subscription
Each role is built for one part of startup work. They share your product, customers, and messaging through Brain AI.
Brain AI keeps every output startup-aligned
Drop your product, customer segments, approved messaging, and team voice into Brain AI. Every output reads from it before it writes. The customer reply, investor update, marketing post all reflect the same startup. 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 startup 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 AI-handled function.
Connect your stack
Link your email, CRM, product analytics, and Slack. Set up takes ten minutes.
Fill Brain AI
Drop in your product, customer FAQ, and approved messaging.
Hand off the first function
Ask AI to take over support triage or run this week's outbound. Real output before the standup.
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 early startup teams
One subscription gives you all 12 functions, Brain AI, and the full integration list. Startup pricing available. 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 startup on AI
Twelve functions, one subscription, no early-stage hire pressure. Get Sintra, drop your product into Brain AI, and see your first handled function before lunch.
Frequenly asked questions
Yes. As you grow, AI absorbs more volume. The leverage compounds as the team grows.
It integrates with the major startup-stack tools via approved connections.
Data sits in encrypted Brain AI storage under standard SOC 2 controls.
Yes. Team members each access the same Brain AI context, so the output is consistent across the team.
Yes. Early-stage pricing is available. The 14-day money-back guarantee covers the trial.
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