AI for freelancers that absorbs the work between billable hours
Drafts client deliverables, status updates, and proposals in your professional voice.
Runs outreach to prospects, manages client comms, and pulls weekly summaries.
Brain AI holds your client list, expertise, and past best work.
Every freelancer workflow in one platform
Freelancing runs on billable work and on the admin, pipeline, and client comms behind it. Sintra runs the admin layer for you. Twelve specialised functions across client work, pipeline, marketing, and operations, all sharing your expertise through Brain AI.
What slows down a freelancer
AI for freelancers should compound billable hours, not duplicate the project tool. These are the drains every solo runs into.
Admin eats billable time
Invoicing, status updates, contract management. Each is small. They add up to billable hours.
Outreach happens when projects squeeze
Busy months: no outreach. Quiet months: scramble. The pipeline rollercoasters.
Proposals take days
Each proposal needs scoping, custom narrative, references. Days per proposal.
Client comms slip during deadlines
Deadlines crunch, client updates stop. Trust takes a hit.
Marketing happens never
Personal brand, portfolio, social all wait. Then a quiet month forces a sprint.
Multiple clients, multiple voices
Each client has different voice expectations. Switching between them is its own job.
How AI for freelancers runs your business, function by function
Each role is built for one part of freelance work. Brain AI holds your client list, expertise, and voice samples.
Draft client deliverables in their brand voice
Send client status updates and check-ins
Build proposals from RFPs
Run prospect outreach sequences
Generate portfolio and social content
Pull weekly utilisation reports
Draft invoices and payment follow-ups
Audit deliverables for voice consistency
How freelancers actually use AI for freelancers
Five workflows that compound your billable hours.
Deliverable drafting
Drop the brief. AI drafts the deliverable in your client's voice. You refine instead of draft from scratch.
Client status
AI drafts weekly status updates per client and queues them for review.
Proposal generation
Drop the RFP. AI drafts the proposal, scoping, and supporting references in your professional voice.
Prospect outreach
AI runs the outreach sequence to qualified prospects so pipeline keeps moving while you bill.
Portfolio refresh
AI drafts case studies, social posts, and portfolio updates from your completed work.
Twelve AI tools for freelancers, one subscription
Each role is built for one part of freelance work. They share your client list, expertise, and voice samples through Brain AI.
Brain AI keeps every output in your voice and theirs
Drop your portfolio, client voice samples, expertise areas, and past best work into Brain AI. Brain AI supports up to five client voice profiles. Each output reads in the right voice for the right audience. 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 freelancer 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-drafted deliverable.
Connect your stack
Link your email, project tool, and invoicing platform. Set up takes ten minutes.
Fill Brain AI
Drop in your client roster, three past best deliverables, and voice samples.
Run the first task
Ask AI to draft a deliverable or status update. Real output before the next client call.
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 freelancers
One subscription gives you all 12 functions, Brain AI with multiple voice profiles, and the full integration list. No per-client fees. 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 freelance business on AI
Twelve functions, one subscription, no admin partner. Get Sintra, drop your past best work into Brain AI, and see your first deliverable draft before the next call.
Frequenly asked questions
Yes. Brain AI supports up to five distinct voice profiles. Each client's voice stays separate.
Brain AI holds your professional voice. Upload past best work; output reads like you after the first proper upload.
Client data sits in encrypted Brain AI storage under standard SOC 2 controls.
Yes. AI drafts proposals from your past best work. Pipeline scales because proposal time drops.
New freelancers get the highest leverage. AI handles admin work that established freelancers absorb over time. The 14-day money-back guarantee covers the trial.
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