6,397 reviews

AI for business leaders that runs your office, so you can run the company

Drafts board updates, investor letters, and team communications in your voice.

Summarises team reports, customer feedback, and competitive intelligence into daily briefs.

Brain AI holds your strategic context so every output knows what matters this quarter.

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No signup required • Takes 2 minutes
14-day full money-back guarantee
2 min setup

Every CEO-office workflow in one platform

Leading a company means switching between strategic work, team reviews, board prep, investor comms, and the inbox between all of them. Sintra runs the comms and admin half for you. Twelve specialised functions for executive office work, all sharing your strategic context through Brain AI.

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What slows down a leadership team

AI for business leaders should free up the strategic time, not duplicate the admin. These are the drains every exec runs into.

The inbox owns the day

By the time you respond to the seventh urgent email, the work that needed your strategic input has waited a half-day.

Board prep eats every quarter

The board pack takes a week of your time and three people's worth of pulling. The board meeting itself is two hours.

Team reviews stay reactive

You check in when something is on fire. The proactive check-ins, the development conversations, slide.

Investor updates lag behind reality

The monthly investor email goes out two weeks after the month closes. By then the story has moved.

Customer voice gets filtered

By the time customer feedback reaches you, it's been through three people. The raw signal is gone.

Strategy gets the leftover hours

The actual strategic work, the company-defining stuff, happens between 9 and 11 p.m. Sunday.

How AI for business leaders runs your office, function by function

Each role is built for one part of CEO-office work. Brain AI holds your strategy doc, KPI definitions, and stakeholder map.

Draft board updates and investor letters

AI Social media manager Soshie Illustration

Summarise team and customer feedback

AI Business Strategist Buddy illustration

Pre-brief you for upcoming meetings

AI assistant robot Vizzy

Handle routine executive office email

Copywriter AI Penn Illustration

Schedule and confirm your calendar

AI email assistant Emmie

Generate weekly company snapshot

AI Sales Manager Milli illustration

Draft thought leadership content

AI data analyst Dexter illustration

Run quarterly OKR review packets

AI Chatbot for Ecommerce Commet Illustration

How leaders actually use AI for business leaders work

Five workflows that change how your week is shaped.

Board prep

AI drafts the board narrative, pulls the KPI updates from your data team, builds the deck, and queues the discussion questions. A week of CEO time recovered.

Monthly investor update

AI pulls the month's revenue, hiring, product, and customer milestones, drafts the email in your CEO voice, and queues it for review. The investor update goes out the week it's about, not two weeks after.

Daily exec brief

AI summarises team activity, customer feedback, competitor moves, and the top three things you need to know. Six tabs of context becomes a one-page brief before 8 a.m.

Meeting pre-briefs

Twenty minutes before each meeting, AI drops a brief: who's attending, what's on the table, what they want from you, and the three points to make. You walk in prepared.

Thought leadership

AI drafts your LinkedIn posts, conference talk outlines, and external interviews from your strategic thinking. Your public voice stops depending on a Saturday morning you don't get.

Twelve AI tools for business leaders, one subscription

Each role is built for one part of the CEO office. They share your strategy doc, KPIs, and stakeholder map through Brain AI.

Buddy

Business Development Manager. Your go-to AI for business development, crafting growth strategies, delivering business insights, and excelling in AI for marketing to ensure success in product launches, audience analysis, and more. Buddy has helped companies of all sizes achieve their business development goals.

Cassie

Customer Support Specialist. As a smart and charming AI for customer support, Cassie crafts expertly tailored responses to customer queries while maintaining your brand’s unique voice. Cassie works alongside your human employees, supporting them to deliver exceptional customer support.

Commet

eCommerce Manager. Your trusted eCommerce guru, here to guide you through online store setup, product launches, and streamline business processes with efficient processing of orders, inventory, and customer data.

Dexter

Data Analyst. A data genius seamlessly transforming complex data into precise calculations, forecasts, and clear, actionable business insights that drive results. With Dexter, you gain actionable insights that inform your business decisions.

Emmie

Email Marketing Specialist. From crafting engaging emails to generating effective win-back flows, Emmie uses her AI-powered solutions to turn your subscriber list into revenue. Emmie also helps reduce the cost of email marketing campaigns while increasing ROI.

Gigi

Personal Growth Coach. Boost productivity with AI—whether you need help planning meals, organizing study sessions, or building workout routines, Gigi is here to support your journey to a better self and bring balance and improvement to your daily life.

Penn

Copywriter. Dedicated to writing compelling copy for your ads, blog posts, websites, advertorials and other marketing campaigns that convert readers into customers. For example, Penn can generate engaging ad copy for a new product launch or craft a persuasive email marketing campaign to boost conversions.

Scouty

Recruiter. Turning hiring challenges into opportunities, crafting magnetic job posts, and guiding smooth team onboarding. Scouty can support recruitment needs across all departments, from HR to finance to customer service. For any recruitment-related topics, this is your go-to employee to ask AI questions.

Seomi

SEO Specialist. Streamline business processes with Seomi’s proven SEO strategies, SEO-optimized blog posts, and AI-powered solutions to boost your website rankings. Seomi brings advanced SEO skills to your team, helping you stay ahead in search rankings.

Soshie

Social Media Manager. Boost Productivity with AI social media manager by using business automation tools—generate content, plan strategies, schedule posts, find trends, and more. Soshie can collaborate with your marketing and content teams to ensure a unified social media strategy.

Vizzy

Virtual Assistant. A trustworthy AI for business owners and busy entrepreneurs to handle calendars, schedule meetings, plan trips, or simply ask AI questions about daily challenges.

Milli

Sales Manager. Milli uses your business insights to craft compelling cold call scripts, design persuasive cold emails, and build pitches that help you close deals with confidence. Milli is also capable of adapting sales strategies to different audiences and markets.

Brain AI keeps every output strategically aligned

Drop your strategy doc, OKRs, KPI definitions, stakeholder map, and past comms into Brain AI. Every output reads from it before it writes. The board update, the investor letter, and the team announcement all reflect the same strategy 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 executive stack you already use

Google
Drive

Gmail

Google Calendar

LinkedIn

Facebook

Instagram

Outlook

Notion

Quickbooks

Microsoft

Strava

Google
Analytics

Google
Drive

Gmail

Google Calendar

LinkedIn

Facebook

Instagram

Outlook

Notion

Quickbooks

Microsoft

Strava

Google
Analytics

Google
Drive

Gmail

Google Calendar

LinkedIn

Facebook

Instagram

Outlook

Notion

Quickbooks

Microsoft

Strava

Google
Analytics

How to start

Three steps from sign-up to your first AI-drafted brief.

1.

Connect your stack

Link your email, calendar, document storage, and Slack. Set up takes ten minutes.

2.

Fill Brain AI

Drop in your strategy doc, OKRs, recent board packs, and past investor updates.

3.

Run the first brief

Ask AI for tomorrow's exec brief, or to draft this month's investor update. Real output before the next meeting.

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.

Learn more about privacy protocols

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.

Learn more about privacy protocols

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.

Learn more about privacy protocols
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Pricing built for founders and exec teams

One subscription gives you all 12 functions, Brain AI, and the full integration list. No per-seat fees, no per-document charges. 14-day money-back guarantee on your first paid month.

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14-day money-back guarantee
3-month plan
$23.60/mo

$177 $70.8 for 3 months
(VAT may apply).

Save 60%
Get Sintra
1-month plan
$48.50/mo

$97 $48.50 for 1 month
(VAT may apply).

Save 50%
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Used by more than
50,000+ founders.

SintraAI has been a Game-Changer for My Business!

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

Perfect for Solopreneurs—New or Seasoned

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

Additional Help from Very Organized Helpers!

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

No psychology degree needed and no drama!

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

Perfect AI Support for My Online Boutique

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

Sintra X Saved Me Time

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

Some Time They’re Too Effective with Ideas

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

SOOO much better than ChatGPT

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

So far, I love 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

I Love Using Sintra

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

Early but satisfied user

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

1st class service by everyone at Sintra.ai

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

Sintra is Amazing!

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

So Much on My Plate, But Sintra Makes It Easy

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

I Was Pleasantly Surprised with Sintra

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

50,000+ founders use Sintra
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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 executive office on AI

Twelve functions, one subscription, no chief of staff hire. Get Sintra, drop your strategy doc into Brain AI, and see your first exec brief before the morning meeting.

Try Sintra Risk Free
14-day full money-back guarantee

Frequenly asked questions

Will it replace my chief of staff?

It does the volume work a chief of staff does: drafts, briefs, summaries, calendar. The judgement work, knowing when to push back, which fire to triage first, stays human. Some leaders pair AI with a chief of staff; some use AI in lieu of one.

How does it write in my voice?

Through Brain AI. Upload past comms, board updates, and investor letters. Every output reads from them. The CEO voice profile gets more specific the more you populate.

What about confidential strategy?

Strategic context sits in encrypted Brain AI storage under standard SOC 2 controls. AI doesn't train on your data, and your context isn't shared with other accounts.

Can it handle board comms?

Yes. Board prep, the deck, the narrative, the discussion questions all draft from your strategy doc and prior board packs.

What if my company is pre-revenue?

AI scales with you. Pre-revenue companies get the most leverage on hiring, fundraising, and product comms. The 14-day money-back guarantee lets you find out.