Comparison

Sintra vs Lindy (2026): Pricing, Fit, and a Third Option

By the Space Office team · July 8, 2026 · 9 min read

Sintra and Lindy solve different problems. Sintra is a chat platform of 12 role-based helpers that draft copy, social posts, and plans on demand. Lindy is an agent builder that automates workflows — support triage, scheduling, outreach — across 4,000+ integrations. Pick Sintra to draft faster; pick Lindy to automate repeatable processes. And if what you actually need is finished, multi-craft work someone else coordinates and reviews, there's a third option worth knowing before you commit.

Two tools that only look alike from a distance

Buyers keep putting Sintra and Lindy in the same basket because both market AI that "works for you." Up close, they're different species. Sintra is a drafting studio you talk to; Lindy is an automation platform you wire up. One produces words and plans when you prompt it. The other watches for triggers — a new email, a form fill, a calendar event — and runs a workflow you built. Comparing them on features misses the point; the real question is which job you're hiring for.

What Sintra is: a drafting studio with 12 personas

Sintra sells speed-to-draft for non-technical operators. You get 12 named chat helpers — a copywriter, a social media helper, an SEO helper, and so on — plus Brain AI, a memory layer that stores your brand details so drafts stay on-tone. Per Sintra's published pricing and help center, the Sintra X plan is $97/month for all 12 helpers (individual helper plans have been discontinued), annual billing runs about 50% cheaper, and every plan includes monthly credits that advanced AI actions draw down, with top-ups available when they run out.

Its real strength is the low floor: describe a task in plain English and get a usable, on-brand draft in minutes. Its documented limit, noted consistently in 2026 reviews, is that helpers don't share task context and there's no automation carrying work from one helper to the next. Sintra scales your drafting; it doesn't scale anything else.

What Lindy is: an agent builder wired into your stack

Lindy sells automation. You build agents that connect to your tools — it advertises 4,000+ integrations — and fire on triggers: triage this inbox, qualify this lead, book this meeting, chase this invoice. It's strongest on support and sales workflows, where the steps repeat and the payoff compounds every day the agent runs.

The pricing is metered. Per 2026 pricing guides from Zapier and Cloudtalk, Lindy offers a free tier of 400 credits a month, paid plans from roughly $50/month for about 5,000 credits, and extra credits at $10 per 1,000. Each task an agent performs costs about 1–10 credits depending on complexity, so a busy agent's real monthly cost depends on volume, not the sticker. Lindy's price is a function of how much your agents run — cheap for light use, meaningful at scale.

Sintra sells you hands that draft. Lindy sells you plumbing that runs. Neither sells you a manager.

The decision table: match the tool to the job

Put side by side, the split is clean. Choose based on the column that describes your actual week, not the one with more features.

Both meters run on credits — read the fine print

The subscriptions look flat, but both products meter usage underneath, and the meters behave differently.

1. Sintra: a monthly bucket with top-ups

Sintra's credits reset monthly and are spent by advanced AI actions. Light users rarely notice them; heavy users hit the floor of the bucket and buy top-ups. Your plan price is fixed, but your ceiling on a heavy month is set by credits.

2. Lindy: a per-action meter that scales with volume

Lindy charges credits per task an agent performs — roughly 1 credit for simple actions, 5–10+ for complex ones like web research or multi-step lead workflows, per those same 2026 guides. An agent that triages 50 emails a day can consume thousands of credits a month. The better your automation works, the more it runs, and the more it costs. That's not a gotcha — it's the model — but you should budget for success, not for the demo.

The question neither tool answers: who owns the finished work?

Neither Sintra nor Lindy coordinates multi-craft work or reviews its own output. Suppose the job is a product-update campaign: two posts, a landing-page refresh, social tiles, an SEO pass. With Sintra, you prompt five helpers separately, judge every draft, and assemble the campaign yourself. With Lindy, you'd first have to build the workflows — and campaign work doesn't repeat cleanly enough to automate. With both tools, you remain the project manager and the quality gate. That's the third job buyers are usually trying to fill when they compare these two, and it's the one neither is built for.

The third option: a managed team with a flat bill

Space Office is a managed team of 30 AI specialists coordinated by Hydrogen, an AI project manager that reviews every output before delivery. You hand Hydrogen one brief; it splits the work, assigns the right specialists — Lithium for copy, Beryllium for graphics, Boron for SEO, Neon for social — and QAs the result before it reaches you. Across 240 internal sample tasks, that review step caught about 4 of 5 quality issues before delivery.

The pricing is deliberately un-metered: a flat $100/month (or $1,000/year), with your own Anthropic, OpenAI, or Google API key billed by the provider at cost — zero markup — and extra specialists at $25/month each. There's no credit bucket to watch and no per-task meter that grows with your success. The full roster is on the agents page, and the delivery workflow is laid out on the how-it-works page.

One campaign, run through all three

Take that product-update campaign — a positioning angle, two blog posts, an SEO pass, six social posts, and header graphics — and price the two weeks honestly. Founder-time figures are illustrative, at $50/hour.

The math lands simply. Space Office comes to about $125 all-in — $100 flat plus roughly $25 of at-cost model usage — for coordinated, reviewed work. Sintra's $97 is nearly the same sticker, but add ten illustrative hours of coordinating and QA at $50/hour and the real cost is closer to $600. Lindy isn't beaten here; it's simply the wrong tool, the way a great dishwasher is the wrong tool for cooking dinner.

Pick by persona, not by feature list

• You mostly need drafts, one type at a time, and like driving the tool yourself: Sintra.
• You have a high-volume, repeatable process — support triage, lead routing — worth automating: Lindy.
• Your work spans writing, design, SEO, and social, and coordinating it is eating your week: a managed AI team.
• You're pre-revenue and price-sensitive above all: start with Lindy's free tier, or Sintra on annual billing.
• You want one predictable number on the card statement: the flat-rate team.

The one-sentence verdict

Sintra drafts, Lindy automates, and a managed AI team delivers — match the tool to the job you're actually hiring for.

Sintra vs Lindy is a real choice, but it's a choice between a better pen and better plumbing. If the job on your desk is neither drafting nor automating — it's getting finished, multi-craft work without becoming the project manager — then the honest answer is that you were comparing the wrong two tools.