6,397 reviews

AI for email marketing that runs your inbox programme end to end

Drafts campaigns, subject lines, and full flows in your brand voice.

Segments lists, schedules sends, and runs A/B tests across every campaign.

Brain AI holds your past best-performers, segments, and brand voice so the open rate climbs.

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

Every email marketing workflow in one platform

Email marketing runs on the campaign, the segmentation, the testing, and the performance analysis that ties them together. Sintra runs all of it in one platform. Twelve specialised functions across drafting, sending, testing, and reporting, all sharing your brand voice and segments through Brain AI.

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What slows down email marketing

AI for email marketing should multiply your sends without dropping the open rate. These are the drains every team runs into.

Subject lines are guesswork

You wrote five subject lines. You picked the one that felt right. The one you didn't pick might have opened twice as well.

Campaigns ship late

The newsletter goes out Tuesday, not Monday. Every week. Then nobody reads Tuesday emails as carefully.

Nurture sequences sit stale

The welcome flow was written eighteen months ago. The product has changed. The flow hasn't.

Segmentation is broad

Everyone gets the same email. The conversion rate reflects the lowest-common-denominator copy.

Performance reporting is reactive

Open rate, click rate, conversion rate. Each campaign's data sits in a tab until someone asks.

Deliverability quietly drops

Inbox rate slipped 8% this quarter. Nobody caught it until the open rate caught up.

How AI for email marketing runs your programme, function by function

Each role is built for one part of the email workflow. Brain AI holds your past best-performers, segments, and brand voice.

Draft campaign emails and subject lines

AI Social media manager Soshie Illustration

Build welcome flows and nurture sequences

AI Business Strategist Buddy illustration

Segment lists by behaviour and signal

AI assistant robot Vizzy

Run A/B tests across copy and timing

Copywriter AI Penn Illustration

Pull weekly campaign and flow performance

AI email assistant Emmie

Refresh stale sequences against current product

AI Sales Manager Milli illustration

Audit deliverability and inbox placement

AI data analyst Dexter illustration

Generate transactional and lifecycle emails

AI Chatbot for Ecommerce Commet Illustration

How marketers actually use AI for email marketing

Five workflows that move the inbox programme to system.

Newsletter cadence

AI takes the week's content, drafts the newsletter in your voice, A/B tests subject lines, and queues the send. The newsletter ships Monday morning instead of Tuesday afternoon.

Welcome flow refresh

AI audits the welcome flow against current product, drafts updates, and queues the refresh. The first impression stops being eighteen months old.

Segmentation

AI segments your list by engagement, behaviour, and signal. Each segment gets the tailored version of the campaign. Conversion rates climb because the message fits.

Campaign launch

Drop the launch goal into Brain AI. AI drafts the campaign, builds the sequence, and queues the segmentation. Launch-week prep drops from a week to an afternoon.

Performance reporting

AI pulls open, click, and conversion by campaign, drafts the insight narrative, and queues the deck. Monday's report is ready before the standup.

Twelve AI tools for email marketing, one subscription

Each role is built for one part of the email programme. They share your past best-performers, segments, and brand voice 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 send sounding like you

Drop your past best-performing campaigns, brand voice, segments, and product knowledge into Brain AI. Every output reads from it before it writes. The newsletter, the welcome flow, the launch campaign all reflect the same brand 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 email and CRM 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 send.

1.

Connect your stack

Link your email platform, CRM, and CMS. Set up takes ten minutes.

2.

Fill Brain AI

Drop in three past best-performing campaigns, brand voice notes, and your segment definitions.

3.

Run the first send

Ask AI to draft this week's newsletter. Real output before Monday.

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
7,473 reviews on

Pricing built for email marketing teams

One subscription gives you all 12 functions, Brain AI, and the full integration list. No per-send fees, no per-subscriber 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 email programme on AI

Twelve functions, one subscription, no second email hire. Get Sintra, drop your past best-performers into Brain AI, and see your first send before Monday.

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

Frequenly asked questions

Does it integrate with my email platform?

It integrates with the major email platforms via approved connections. The integration list keeps growing.

Will the copy sound like my brand?

Brain AI holds your voice samples. Every send reads from it. The more best-performers you upload, the tighter the voice gets.

Can it actually send, or just draft?

Both. AI drafts, schedules, and sends through your email platform. Anything that needs approval queues for your review.

What about deliverability?

AI monitors inbox placement, sender reputation, and engagement signals. Drops get flagged early with the fixes drafted.

What if my list is small?

Small lists get the highest segmentation leverage. The 14-day money-back guarantee lets you find out without committing.