The main Sintra AI alternatives for a small business are Extra, Lindy, Motion, Zapier Agents, Marblism and Relevance AI. Extra is the one that asks for your approval before anything goes out and is set up with you by an expert. Lindy focuses on email and calendar, Motion on planning and projects, and Marblism sells a ready-made team of AI employees. Zapier Agents and Relevance AI suit teams ready to build their own agents.
We make Extra, so this comparison is written by an interested party. Facts about other tools come from the public sources listed at the bottom of the page, as of the update date.
Why look for a Sintra AI alternative?
Three reasons come up often: the 250 monthly credits don’t roll over, you set the tool up on your own, and the autonomous mode acts without asking for your approval each time.
Quick comparison
| Tool | Based in | Indicative price | Setup |
|---|---|---|---|
| Extra | France | $99 per month, 100 credits | With an expert, included |
| Lindy | United States | Free plan ($50 in credits for 7 days); Team from $49.99 per user per month | Self-service, no code |
| Motion | United States (San Francisco) | Pro AI from $19 per seat per month, with a trial | Self-service |
| Zapier Agents | United States (remote) | Free plan (400 activities per month); Agents Pro $33.33 per month billed annually | Build it yourself |
| Marblism | United Kingdom (London) | From $24 per month billed yearly | Self-service |
| Relevance AI | Australia and United States | On quote (enterprise) | Build it yourself |
1. Extra: approval before anything goes out
Extra gives a small business eight AI agents that share the work: Jade (marketing), Louis (SEO), Ryan (website), Jim (phone reception), Pam (executive assistant), Oscar (finance), Clara (legal) and Kelly (reviews). Each agent prepares, and nothing goes out without your approval. An expert sets Extra up with you.
Its limits: eight agents, fewer than Sintra, and access that opens after a 15-minute call rather than self-service.
2. Lindy: to delegate email and calendar
Lindy is a US no-code AI assistant focused on email, meetings and scheduling. It’s a good choice if your main need is your inbox. Its free plan gives you $50 in credits to use within 7 days, and the Team plan starts at $49.99 per user per month.
3. Motion: for planning and projects
Motion, based in San Francisco, started as an AI calendar and task manager and now sells AI agents it calls AI Employees. It suits teams whose main pain is planning and follow-up. Its Pro AI plan starts at $19 per seat per month, and you can try it before paying.
4. Zapier Agents: to build agents on the apps you already use
Zapier, the app automation company, lets you build agents that act across the apps it connects. There is a free plan with 400 activities per month, and Agents Pro costs $400 a year ($33.33 per month). It’s flexible, but you design and maintain each agent yourself.
5. Marblism: a ready-made team of AI employees
Marblism, a London company backed by Y Combinator, offers a team of AI employees for small businesses, from $24 per month billed yearly. Like Sintra, it’s self-service.
6. Relevance AI: for structured sales teams
Relevance AI, founded in Sydney with an office in San Francisco, is for building a team of AI agents for sales and marketing. It suits companies that already have processes and someone to configure them. Its pricing page now only lists an enterprise plan, on quote.
How to choose?
- Tools. List the tools you use every day (Gmail, Stripe, Shopify, Google Business Profile…) and check that each option connects to them.
- Control. Do you want to approve before anything is sent? Extra asks for it in its single plan, and Sintra X acts on its own.
- Setup time. Without time or technical skills, prefer a guided setup over a tool you build yourself.
- Volume. Count your monthly tasks (reminders, posts, reviews) and compare them with the included credits.
