Lindy vs Stack AI (2026): which should you pick?
As of Nov 12, 2026, Lindy grades higher than Stack AI: 2.4 against 2.2 out of 4.0.
Checked Oct 5, 2026 and Nov 12, 2026 · graded Oct 10, 2026 and Nov 12, 2026 by ToolGPA
Lindy grades higher on features. They get the same grade on value for money, the free plan, 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
Free trial · from $29.99/mo
Which one is for you
Pick Lindy if
- Fits if your team lives in Slack and wants one shared AI teammate
- Works for reports, briefs and follow-ups that come round every week
Look elsewhere if
- Not for you if you want a free plan to stay on, as the $50 of credits runs out after 7 days
- Pricey if lots of people dip in now and then, since everyone who @mentions it takes a paid seat
- Skip it if you need SSO, SCIM, audit logs or HIPAA compliance, which are Enterprise only
- Watch out: credits don't roll over, and actions that use them pause when the shared pool runs out
- Skip it if you want a phone or desktop app of its own, as it works through Slack, iMessage, email and the web
Pick Stack AI if
- Fits if you want to build one or two agents and try them free
- Makes sense if you plan to ask for an enterprise deployment later
Look elsewhere if
- Tight if you work in a team, as Free is 1 seat and 2 projects
- Not for you if you want a self-serve paid plan, because none is published
- Watch out: SSO, access control, VPC and on-prem are Enterprise only
- Watch out: the homepage says Asana acquires StackAI, so ownership and plans may change
How we grade them
| 2.4GPALindyFair | 2.2GPAStack AIFair | |
|---|---|---|
| Value for money | C$29.99 a user each month for 3,000 credits a seat, pooled across the team, which is the dear end of middling for agent tools here. Bigger bundles cost less per credit, like 15,000 for $99.99, and top-ups are $10 per 1,000. Credits don't roll over. | COnly Free and a custom Enterprise plan are listed, so there is no published paid price to set against the category. |
| Free plan and trial | CNo lasting free plan: you start with $50 in credits and no card needed, and they expire after 7 days. Seven days to look, then $29.99 per user a month. | CFree allows 500 runs a month, 2 projects and 1 seat, with community support on Discord. You will hit those caps. |
| Features | BIt covers the job: one shared teammate in Slack across Gmail, Notion, HubSpot and 1,000-plus other apps, meetings recorded into a shared library, routines set up in a sentence, 40-plus skills, memory in plain files you can edit, and approval before anything leaves the building. | CA flow builder, knowledge bases and data loaders, and several ways to ship an agent. SSO, VPC, on-prem and BAA sit on Enterprise only. |
| Ease of use | CThe people who use it just @mention it in Slack. Someone still has to install it, connect the tools and watch a shared credit pool, and every person who uses it takes a paid seat. No rating on record. | CNo store rating on record, and building an agent means setting up flows and data. |
| Platforms and integrations | BSlack first, plus iMessage, email, the web and a Chrome extension, connecting to more than 1,000 apps and any MCP server. No phone or desktop app of its own. | BWeb plus a browser extension, with Slack, Google Drive and Notion listed. |
| Best for | one AI teammate a whole team shares in Slack | building a first AI agent on a free plan |
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 Stack AI. How we grade
Where they differ
- Lindy also covers meeting notes, chat assistant and inbox filtering.
In commonWebBrowser extensionWorkflow automationAI agents
At a glance
| Lindy | Stack AI | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $29.99 per user / month, for 3,000 credits | Not published |
| Free plan | None | 500 runs per month, 2 projects, 1 seat and community support on Discord. |
| Free trial | $50 in free credits that last 7 days, no credit card required | None listed |
| Web | ||
| Browser extension | ||
| Made by | Crivello Corp, doing business as Lindy | StackAI |
| Price read from | lindy.ai | stackai.com |
| Checked | Oct 5, 2026 | Nov 12, 2026 |
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.
Stack AI
- Only a Free plan and a custom Enterprise plan are listed; there is no published self-serve paid tier.
- The free plan has 1 seat, 2 projects and 500 runs a month.
- SSO, access control, VPC, on-prem and BAA are Enterprise features.
- Its homepage says Asana acquires StackAI, so plans and ownership may change.
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.
Stack AI
- Agent and flow builder
- The comparison table lists Agents and Flow modules, with Python and JavaScript code steps for custom logic.
- Multi-modal inputs
- Agents take text, image, audio and video inputs and return text, image or audio, with vision and speech modules.
- Knowledge bases and data loaders
- Load documents (PDF, Word, PowerPoint), web scrapes, Google Drive and Notion content into a knowledge base.
- Ways to ship an agent
- Deploy through a REST API, a Chrome extension or a Slack bot; custom domains and analytics are listed.
- Security and deployment options
- Enterprise offers SSO, access control, VPC and on-premise deployment, and the page claims SOC 2, HIPAA and GDPR compliance.
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.
Stack AI
Free plan$0
500 runs per month, 2 projects, 1 seat and community support on Discord.
EnterpriseCustom
Custom runs and seats, unlimited projects, dedicated infrastructure, SSO, VPC or on-prem deployment.
Common questions
Which is cheaper, Lindy or Stack AI?
As of Nov 12, 2026, Lindy starts at $29.99 per user / month, for 3,000 credits, and Stack AI publishes no starting price.
Which has a free plan, Lindy or Stack AI?
As of Nov 12, 2026, only Stack AI has a free plan. Lindy does not, though it has a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.