AI for startup that absorbs the work between you and shipping
Drafts customer comms, investor updates, and content while you focus on building.
Handles support tickets, marketing, and routine admin from day one.
Brain AI holds your product, customers, and approved messaging.
Every startup function in one platform
Startups run on the founder doing everything. Sintra runs the work that's stealing your build time. Twelve specialised functions across customer comms, marketing, support, and investor relations, all sharing your product context through Brain AI.
What slows down a startup
AI for startup should compound founder capacity, not duplicate the stack. These are the drains every early team runs into.
Customer support pulls founders off product
Each customer question takes you off the codebase. Productivity dies in context switches.
Investor updates lag the quarter
Investors expect monthly updates. Drafting them takes a half-day. They go out late.
Marketing happens when there's time
When you should be marketing, you're shipping. When you should be shipping, you're marketing. Neither works.
Documentation lags reality
Product moves faster than the help center. Customers ask questions because the docs aren't current.
Hiring takes time you don't have
First hires are the hardest. Crafting job posts, screening, interviewing takes weeks.
Founders do twelve jobs badly
You're the engineer, marketer, support, BD, recruiter, finance. Every role gets the leftover hours.
How AI for startup runs your work, function by function
Each role is built for one part of startup work. Brain AI holds your product, customers, and approved messaging.
Handle customer support tickets
Draft monthly investor updates
Run marketing across email and social
Refresh product documentation
Generate hiring posts and screen applicants
Pull weekly metric snapshots
Draft sales outbound for early customers
Audit the website for conversion
How founders actually use AI for startup
Five workflows that recover founder time.
Customer support
AI handles routine support tickets using your product docs. Edge cases route to you with context. You stay on the codebase.
Investor update
AI pulls revenue, hiring, product milestones into the investor update in your CEO voice. Sends the week the month is about.
Marketing on system
AI runs weekly content, email sequences, and social posts in your voice. Marketing stops depending on quiet weeks.
Documentation refresh
Product changes. AI updates the help center, changelogs, and support macros automatically.
First hires
AI drafts job posts in your team voice, screens applicants, and queues interviews.
Twelve AI tools for startup founders, 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 product-aligned
Drop your product positioning, customer base, approved messaging, and founder voice into Brain AI. Every output reads from it before it writes. The customer reply, the investor update, the 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 task.
Connect your stack
Link your email, CRM, product analytics, and Slack. Set up takes ten minutes.
Fill Brain AI
Drop in your product positioning, customer FAQ, and approved messaging.
Hand off the first task
Ask AI to handle today's support queue or draft this month's investor update. Real output before the next 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 startups
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's work on AI
Twelve functions, one subscription, no first ops hire. Get Sintra, drop your product into Brain AI, and see your first handled task before lunch.
Frequenly asked questions
Yes. As your startup grows, AI absorbs more volume. The leverage compounds as the team grows.
It integrates with the major startup-stack tools via approved connections.
Product context sits in encrypted Brain AI storage under standard SOC 2 controls. AI doesn't train on your data.
Yes. AI works across 100+ languages with brand voice preserved.
Yes. Early-stage pricing is available. The 14-day money-back guarantee covers the trial.
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