Lindy vs Sintra
We give Lindy a 3.0 GPA and Sintra a 2.6, out of 4.0. Lindy grades higher on value for money, the free plan and features. Sintra grades higher on ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Lindy
AI teammate for Slack that works across your team's tools
How we grade them
| 3.0GPALindyVery good | 2.6GPASintraGood | |
|---|---|---|
| Value for money | B$29.99 a user each month, with 3,000 credits per seat pooled across the team. That's at the dear end of typical here. Bigger bundles cost less per credit, like 15,000 for $99.99, and top-ups are $10 per 1,000. Monthly credits don't roll over. | CList prices run from $52 a month on the 12-month plan to $97 for a single month, well above what agents here usually start at. When checked, the site had them on sale at $15.60 and $48.50. Either way you get 250 credits a month, and the longer terms are paid in one go. |
| Free plan and trial | CNo lasting free plan. You start with $50 in free credits and no credit card, but they only last 7 days. After that it's $29.99 per user a month. | FNothing is free. The site advertises no free plan and no trial, so step one is paying. Every plan has a 14-day money-back guarantee, which is a safety net and not a trial. |
| Features | AOne shared teammate in Slack that connects to Gmail, Notion, HubSpot and more than 1,000 other apps. It records meetings into a shared library, runs routines you set up in a sentence, comes with 40+ skills and keeps its memory in plain files you can edit. Anything with outside impact waits for approval. | BTwelve helpers with set jobs, from social media to support to SEO, all drawing on one Brain AI that knows your business. They can send Gmail, add calendar events and post to Facebook, Instagram and LinkedIn. Solid basics. But advanced actions come out of 250 credits a month, and after that it's top-ups. |
| Ease of use | BYou @mention it in Slack like a colleague, and a routine such as a Monday report is set up in one sentence. There's no rating on record to go by, so a B. | A4.6 from about 2,500 App Store ratings. The helpers come ready-made, so you pick one and start chatting. One-click use cases cover jobs like keyword research and email campaigns. |
| Platforms and integrations | BSlack first, plus iMessage, email, the web and a Chrome extension. It connects to more than 1,000 apps and any MCP server. The listing has no phone or desktop app of its own. | AWeb, iPhone and Android, with connections to Gmail, Outlook, Google Calendar, Facebook, Instagram, LinkedIn, Notion and QuickBooks. No desktop app or API is listed. |
| Best for | one AI teammate a whole team shares in Slack | a ready-made set of helpers for a small business |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Lindy and Sintra. How we grade
Where they differ
- Lindy starts at $29.99 per user / month, for 3,000 credits. Sintra starts at $52 per month on the 12-month plan, before the discount shown on site.
- Only Lindy lists a browser extension.
- Only Sintra lists iOS and Android apps.
- Lindy also covers meeting notes and inbox filtering.
- Sintra also covers marketing automation.
At a glance
| Lindy | Sintra | |
|---|---|---|
| Pricing | Free trial | Paid |
| Starts at | $29.99 per user / month, for 3,000 credits | $52 per month on the 12-month plan, before the discount shown on site |
| Free plan | None | None |
| Free trial | $50 in free credits that last 7 days, no credit card required | None listed |
| Web | ||
| iOS | ||
| Android | ||
| Browser extension | ||
| Made by | Crivello Corp, doing business as Lindy | PlayOS, Inc. |
| Price read from | lindy.ai | sintra.ai |
| Checked | Oct 5, 2026 | Oct 5, 2026 |
Who each one suits
Lindy
- Teams that work in Slack and want one shared AI teammate
- Recurring reports, briefs and follow-ups pulled from connected tools
- Gmail users who want labeled mail and pre-drafted replies
Sintra
- Solo founders and small businesses covering many roles
- Routine marketing work such as social posts, emails and SEO copy
- Owners who want ready-made helpers rather than building agents
Worth knowing
Lindy
- There is no ongoing free plan: the $50 of free credits lasts 7 days, after which paid usage starts at $29.99 per user per month.
- Anyone who uses Lindy takes a paid seat, including people who @mention it in Slack; those joining through Slack get a one-time 7-day trial first.
- Monthly credits do not roll over, and Lindy pauses credit-using actions when the shared pool runs out.
- SSO, SCIM, audit logs and HIPAA compliance with a signed BAA are limited to Enterprise.
Sintra
- The website advertises no free plan or free trial; all paid plans carry a 14-day money-back guarantee.
- Prices here are the crossed-out list prices. When checked, the site sold the plans at 50% to 70% less and its FAQ gave $48.50 a month as the starting price.
- Each plan includes 250 credits a month for advanced AI actions; more must be bought as top-ups.
- The lower monthly rates on the 3-month and 12-month plans are charged as one payment for the whole term.
Key features
Lindy
- Shared teammate in Slack
- A whole team shares one Lindy, summoned with an @mention in Slack channels and threads. It can also be reached by iMessage, by email and in the browser.
- Integrations and MCP
- Connects to Gmail, Slack, Notion, HubSpot and more than 1,000 other apps, and can use any MCP server to reach tools that have no built-in integration.
- Meeting recording and notes
- Records meetings and writes notes into a shared library with folders that teammates can query later. It also handles scheduling, prep and follow-up.
- Scheduled routines
- Recurring work such as a morning brief, a Monday report or a Friday nudge can be set up in a sentence and run on a schedule.
- Skills and editable memory
- Comes with more than 40 skills, including research, data analysis and slide decks. New skills can be saved for the whole team, and its memory lives in plain files you can edit.
- Approvals
- Actions with outside impact, such as sending an email or updating a ticket, wait for approval. Read-only lookups from approved sources do not.
Sintra
- Twelve role-based helpers
- Every plan includes all 12 helpers, each with a set role, among them Soshie for social media, Cassie for customer support, Seomi for SEO, Milli for sales and Vizzy as a virtual assistant.
- Brain AI
- A shared knowledge base of brand details, files and website content that every helper draws on, so output stays consistent with the business.
- Integrations that take action
- One-click connections let helpers send and reply to Gmail or Outlook mail, create Google Calendar events, publish to Facebook, Instagram and LinkedIn, and update Notion pages.
- One-click use cases
- Preset tasks run with a few clicks, such as competitor research, finding SEO keywords, generating email campaigns and removing image backgrounds.
- Profiles and shared workspaces
- Unlimited business profiles can be created, each with its own context, and a workspace can be shared with teammates.
- Work in 100+ languages
- Helpers work in more than 100 languages, for example writing social posts in Italian or answering emails in German.
Plans
Lindy
Free$0
$50 in credits that last 7 days, with no credit card required. Paid usage starts after that.
Team$29.99
per user / month, for 3,000 credits each
Credits pooled across the team, larger monthly bundles such as 15,000 credits for $99.99, top-ups at $10 per 1,000, model choice and computer use.
EnterpriseCustom
Everything in Team, plus HIPAA compliance with a signed BAA, SSO and SCIM, audit logs, custom credits and billing, and dedicated support.
Sintra
12-month plan$52
per month for 12 months, list price before site discount
All 12 helpers, 250 monthly credits, 15+ integrations and 24/7 support. Shown at $15.60 a month, or $187.20 for the term, when checked.
3-month plan$59
per month for 3 months ($177), list price before site discount
The same bundle on a quarterly term. Shown at $23.60 a month, or $70.80 for the 3 months, when checked.
1-month plan$97
per month, list price before site discount
The same bundle billed one month at a time. Shown at $48.50 a month when checked.
Ways to pay less
Lindy
No public discounts listed.
Sintra
- Other savings
Sale pricing: 50% to 70% off list
When checked, the pricing page showed $48.50 a month on the 1-month plan (list $97), $23.60 on the 3-month plan (list $59) and $15.60 on the 12-month plan (list $52).
- Annual discount
Longer terms cost less per month
At list prices the 12-month plan works out to $52 a month and the 3-month plan to $59, against $97 for a single month. Longer terms are paid upfront.
