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Best AI Cofounders

Run by the team behind Crevio, which we rank first. Every tool, Crevio included, is scored on the same published rubric. Read our disclosure.

Sintra review

Sintra gives you twelve AI helpers for social media, SEO, sales, copywriting, customer support, data analysis and recruiting, personalized by a shared Brain AI that learns your business.

Updated November 11, 2026

No. 17 of 23AI employee

Our verdict

Affordable on a yearly plan and easy to start with for content and marketing help. It doesn't build or run a business: no website, product or payments.

Choose Sintra if you need marketing content more than you need anything built.

Why it earns a seat

  • Twelve helpers in one plan
  • Shared Brain AI keeps outputs on-brand
  • Low price on the yearly plan
  • Easy for owners who don't want to write prompts

Where it falls short

  • No website, product or payments
  • 250 monthly credits run out quickly
  • Pricing leans on large "sale" discounts
  • Trustpilot withholds its rating over review incentives

Sintra pricing

Sintra plans and prices
PlanMonthlyPer month, billed yearlyWhat you get
1 month$48.50Not listedAll 12 helpers, 250 credits (sale price; $97 list)
3 months$23.60Not listedBilled every 3 months
12 monthsNot listed$15.60Billed yearly
Free plan
None.
Fees beyond the plan
None found on its pricing pages.
Refunds
Advertised 14-day guarantee; the terms limit refunds to faulty products.

What Sintra can do

Sintra alternatives

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    CrevioFull AI cofounder
    9.1
  2. 2
    CofounderFull AI cofounder
    7.7
  3. 3
    ViktorAI employee
    6.7
  4. 4
    CREAOAI employee
    6.3
  5. 5
    MarblismAI employee
    6.3
  6. 6
    ManusAI employee
    6.0

See all Sintra alternatives

Head-to-head comparisons

Sources and notes

We checked these pages on November 11, 2026. Scores are editorial and follow our published rubric. We haven't run Sintra on a live business of our own. Spotted something out of date? Send a correction.