Slack vs Microsoft Teams for Small Business
If your team is drowning in group texts and email chains, a team chat app like Slack or Microsoft Teams pulls all of it into one organized place. Both are excellent. The right pick mostly comes down to what software you already use. Here's the honest comparison for a small business.
The short answer
Already pay for Microsoft 365 (Outlook, Word, Excel)? Use Teams, it's included and ties into everything you already have. Don't use Microsoft 365 and want the simplest, friendliest tool? Go with Slack. Both have solid free plans, so you can try either at no cost.
What these tools do
Both replace scattered texts and emails with organized channels (one per project, client, or topic), plus direct messages, file sharing, and video calls. The result: less inbox clutter, searchable history, and one place the whole team checks.
Microsoft Teams
Best if you use Microsoft 365. Teams comes bundled with paid Microsoft 365 Business plans, so you may already own it. It integrates tightly with Outlook, Word, Excel, and SharePoint, and its video meetings are strong, which is why so many businesses default to it.
- Pros: included with Microsoft 365, excellent video meetings, deep Office integration, good value if you're already in the Microsoft world.
- Cons: can feel heavier and busier than Slack; a steeper learning curve for non-technical folks.
- Free version: yes, with chat, video, and file sharing.
Slack
Best for simplicity and a friendly feel. Slack is widely loved for being easy to pick up and pleasant to use. It connects to a huge range of other apps (Google Workspace, project tools, and more), so it fits businesses that aren't tied to Microsoft.
- Pros: easiest to learn, clean and friendly, connects to the most third-party apps, great for fast back-and-forth.
- Cons: the free plan limits how far back you can see message history; full features and group video need a paid plan.
- Free version: yes, with messaging, channels, and one-to-one video.
Side by side
- Ease of use: Slack is friendlier for non-technical teams. Teams takes a bit more learning.
- Video meetings: Teams is the stronger video platform, especially for larger meetings.
- Office integration: Teams wins hands down if you live in Word, Excel, and Outlook.
- Other app integrations: Slack connects to the widest range of outside tools.
- Cost: Teams is "free" if you already pay for Microsoft 365; otherwise both have free tiers and similar paid pricing.
How to decide in 30 seconds
- Do you already pay for Microsoft 365? If yes, use Teams; you're paying for it anyway.
- Is your team non-technical and you want the gentlest learning curve? Lean Slack.
- Do you run lots of video meetings? Teams has the edge.
- Still torn? Both are free to try. Spin up the free version of each for a week and see which your team actually opens.
A note for very small or solo businesses
If it's just you or two or three people, you may not need either yet, a group text or email might be fine. The moment things get confusing, with important messages lost in texts and threads, that's when channels start earning their keep. Start on a free plan and upgrade only if you hit its limits.
Want help getting your team set up?
Isaac can set up Slack or Teams, organize your channels, connect it to the apps you already use, and get your team comfortable with it. We'll pick the one that fits, not the one with the bigger ad budget.