# Slack vs Microsoft Teams for ad agencies

> For an ad agency, the choice between Slack and Microsoft Teams comes down to where clients are, which ad tools post where, and cost per seat. A plain way to decide.
- **Author**: Marxx
- **Published**: 2026-11-07
- **Category**: Tools
- **URL**: https://marxx.ai/library-compare/slack-vs-microsoft-teams-for-agencies

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Pick the chat app your biggest clients already use, then check that the ad tools you depend on post into it. Of the nine ad tools we read on 6 Nov 2026, all nine list Slack and one also lists Microsoft Teams.

## What we checked

This page compares only what we could verify on 6 Nov 2026. Slack's facts come from its India pricing and Connect pages. We did not verify Microsoft Teams prices or features, so the Teams column points you to Microsoft's own site instead of guessing.

| Question | Slack | Microsoft Teams |
|---|---|---|
| Price in India | Free INR 0. Pro INR 245.25 per user a month paid yearly, INR 294.75 monthly. Business+ INR 557.10 yearly, INR 668.25 monthly. Enterprise+ on request | Not verified. Check Microsoft's pricing page |
| Channels with other companies | Slack Connect, up to 250 organisations, on paid plans | Not verified |
| Ad tools that list it (of those we read) | Runneth, Motion, Adstellar, Ryze, Markifact, Polar Analytics, Birch, Opteo, Optmyzr | Optmyzr |
| App cap on the free plan | 10 apps | Not verified |

Slack prices from [slack.com/intl/en-in/pricing](https://slack.com/intl/en-in/pricing), checked 6 Nov 2026. Tool lists from each tool's own site, same day. We did not check every tool's Teams support, so a tool missing from the Teams column may still offer it.

## The three differences that matter

### Where your clients are

If a large client runs on Teams and wants to talk there, that decides a lot. If clients mostly use WhatsApp or email, the choice is only about your own team. Our comparison of Slack and WhatsApp for agency clients covers that side.

### Which ad tools post where

An agency's chat app is where alerts, leads and reports land. Before you choose, list every tool that posts messages and check its integrations page. Optmyzr lists both Slack and Microsoft Teams. The other ad tools we read list Slack.

### What you pay per seat

Say you have 15 people. On Slack Pro paid yearly, that is 15 x INR 245.25 = INR 3,678.75 a month, or INR 44,145 a year. Get the matching Teams quote from Microsoft for the same 15 people, then compare like for like. Our [Slack pricing page](/prices/slack-pricing) has every Slack plan.

## Who should pick which

- **Your key clients use Teams and want to talk there:** lean to Teams for client work.
- **Your ad tools post to Slack and clients use WhatsApp:** Slack for the team.
- **Some clients on each:** run your team on one, and meet clients where they are.

## How to test before you switch

1. List the tools that send you messages today.
2. Check each one's integrations page for Slack and for Microsoft Teams.
3. Run one client on the new app for two weeks.
4. Count missed alerts and slow replies, then decide.

The [agency Slack setup guide](/guides/how-to-set-up-slack-for-an-ad-agency) covers the Slack side, and [the best AI tools for agencies](/best/best-ai-tools-for-agencies) lists more tools to check.

We make Marxx. [Marxx in Slack](/features/slack) posts leads, alerts and competitor digests to Slack. Marxx alerts can also go by email.

## FAQ

### Can an agency use both Slack and Microsoft Teams?

Yes. You can run your team on one app and use the other where a client asks for it. Keep your own alerts in one place.

### Is Teams cheaper than Slack?

We did not verify Teams prices, so we will not say. Compare a written quote for your seat count against Slack's rupee prices.

### Which works better with ad tools?

Check your own tools. Of the ad tools we read on 6 Nov 2026, more listed Slack than Microsoft Teams.

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