The Battle of Team Chat Apps

I've worked in companies that used all three. Slack at a startup. Teams at a bigger company. Discord for a side project community. Each does something well. And each will annoy you in different ways.

In a rush? My quick picks:
Slack for tech companies and startups drowning in tools that need to talk to each other.
Teams if you're already on Microsoft three sixty-five. Bundled free. Why pay twice?
Discord for scrappy teams that want voice rooms and don't care about enterprise polish.

There's more to it though. Stick around.

Feature Breakdown

How these three compare on the stuff that matters:

Free message history. Slack caps at ninety days. Teams and Discord keep everything forever.

Video participants on free. Slack only does one-on-one calls. Teams goes up to a hundred. Discord stops at twenty-five.

App integrations. Slack wins with twenty-six hundred plus. Teams has around a thousand. Discord maybe five hundred.

Screen sharing. All three. Done.

File storage on paid. Slack gives ten gig per member. Teams hands you a full terabyte. Discord caps uploads at one hundred megs.

Guest access. Slack makes you pay for it. Teams and Discord include it free.

Mobile experience. Slack and Discord nailed it. Teams is fine but heavier.

Enterprise depth. Slack and Teams go hard. Discord has almost nothing here.

My Recommendation

Slack if integrations matter. Connect everything to everything.

Teams if Microsoft already owns your workflow. No reason to add more tools.

Discord if free voice channels and casual culture beat enterprise features.

Slack

Launched twenty thirteen. Basically invented modern team chat. Seven hundred fifty thousand organizations and counting. Default choice in tech for a reason.

What Makes Slack Work

Clean design that new hires figure out immediately. No training deck required.

Threading that actually helps. Side conversations stay out of the main channel. Underrated feature.

Twenty-six hundred integrations. Whatever tools your team runs? Slack probably connects. GitHub. Notion. Linear. Asana. Salesforce. All of it.

Search that delivers. Find messages from two years ago without scrolling forever.

Workflow Builder automates repetitive stuff. No coding.

Slack Connect lets you share channels with clients and vendors. External collaboration without email chains.

Where Slack Struggles

Video is an afterthought. Huddles work for quick syncs but most teams run Zoom or Meet alongside anyway.

Ninety day history on free tier. Pretty limiting.

Expensive at scale. Fifty people on Pro runs four hundred thirty-seven a month.

Notification chaos is easy to create. Discipline required.

Slack Pricing

Free. Ninety days of history. Ten integrations. One-on-one video calls.

Pro. Eight seventy-five per user per month. Unlimited everything. Group video.

Business Plus. Fifteen per user per month. Single sign-on. Compliance exports. Twenty-four seven support.

Enterprise Grid. Custom pricing. Multiple workspaces. Serious security. Dedicated team.

Who Should Pick Slack

Tech companies and startups with tooling sprawl. Agencies juggling lots of clients. Async-first teams.

Microsoft Teams

Twenty seventeen launch. Now three hundred twenty million monthly users. Microsoft bundled it with three sixty-five and enterprises adopted fast.

What Makes Teams Work

Video conferencing is genuinely solid. Together mode. Virtual backgrounds. Live captions. Breakout rooms. Recording with transcription. All built in.

Three sixty-five integration feels native. Word. Excel. SharePoint. OneDrive. Everything connects without friction.

Co-editing documents inside Teams. No switching apps to collaborate on a spreadsheet.

Enterprise features run deep. Compliance. Security controls. Admin dashboards.

Generous free tier surprised me. Unlimited messages. Hundred person video. Five gig storage.

Where Teams Struggles

Learning curve is steeper. Features pile up and navigation gets confusing.

Resource hog. Older laptops choke on it.

Third-party integrations lag behind Slack. Fewer options. Rougher polish.

Threading feels less natural than Slack's version.

Channel hierarchy becomes a maze in big organizations.

Teams Pricing

Free. Unlimited chat. Hundred person video. Five gig storage.

Business Basic. Six per user per month. Business email. Terabyte storage. Desktop apps.

Business Standard. Twelve fifty per user per month. Full Office suite. Webinar hosting.

Enterprise. Twelve to fifty-seven per user monthly. Compliance heavy. Unlimited users.

Who Should Pick Teams

Organizations already living in Microsoft three sixty-five. Enterprises with compliance officers. Video meeting heavy workflows.

Discord - The Wildcard

Built for gamers. Two hundred million users now. But professional teams discovered it too. Tech, gaming, and creative shops especially.

What Makes Discord Work

Voice channels change everything. Always-on rooms. Drop in whenever. No calendar invite. No meeting link. Just there.

Free tier is absurdly generous. Unlimited messages. Full history. Twenty-five person video. Screen sharing.

Community building is where Discord shines. Products. Open source. Fan groups.

Screen sharing quality surprised me. Works great even on free.

Casual vibe attracts certain teams. Less corporate formality.

Mobile app feels snappy. Quick communication without the bloat.

Where Discord Struggles

Enterprise features barely exist. Admin controls are basic. No compliance tools. No security certifications.

Professionalism perception. Some clients won't take a Discord invite seriously.

Business integrations are sparse. Gaming and community stuff dominates.

Search is basic. Nothing like Slack's power.

File management caps at one hundred megs. No real organization system.

No business tier exists. Personal subscriptions only.

Discord Pricing

Free. Everything important. One hundred meg uploads. Twenty-five person video.

Nitro Basic. Two ninety-nine monthly. Fifty meg uploads. Custom emoji everywhere.

Nitro. Nine ninety-nine monthly. Five hundred meg uploads. HD video. Server boosts.

Server Boosts enhance features for your whole server.

Personal subscriptions only. No team billing option yet.

Who Should Pick Discord

Small teams. Gaming studios. Developer communities. Creative agencies. Voice-first cultures.

Feature Deep Dive

Messaging

Threads. Slack leads. Teams has them but clunky. Discord added them recently. Still maturing.

Rich text. All three do markdown. Slack polishes it best.

Emoji reactions. Universal. Discord wins on custom emoji creativity.

Search. Slack dominates. Teams works. Discord is bare bones.

Video and Audio

Video meetings. Teams wins on features. Slack needs third party help. Discord handles casual calls fine.

Screen sharing. All three solid. Discord quality impressed me.

Always-on voice. Discord only. Slack and Teams don't have it. Makes a difference.

Recording. Teams native. Others need workarounds.

Admin Controls

User management. Teams and Slack both robust. Discord limited.

Compliance. Teams strongest. Slack Enterprise Grid works. Discord almost nothing.

Single sign-on. Slack and Teams on paid tiers. Discord options minimal.

Analytics. Teams dashboards built in. Slack basics on paid. Discord barely tracks.

Cost for Fifty People

Slack Pro. Four hundred thirty-seven monthly.

Teams Business Basic. Three hundred monthly.

Discord. Zero.

Value Math

Teams wins on sticker price. Especially bundled with three sixty-five.

Slack costs more but connects to more stuff.

Discord costs nothing but skips business features entirely.

Total cost matters though. Teams bundles email and storage and Office. Slack teams usually add Zoom and Google Workspace and other subscriptions.

Integration Ecosystems

Slack Apps

Twenty-six hundred in the directory.

Dev tools. GitHub. GitLab. Jira. Linear. PagerDuty.

Productivity. Notion. Asana. Trello. Google Workspace.

Sales. Salesforce. HubSpot. Pipedrive.

Support. Zendesk. Intercom. Freshdesk.

Monitoring. Datadog. New Relic. Mixpanel.

Teams Apps

Thousand or so. Microsoft ecosystem strongest.

Native. Outlook. SharePoint. OneDrive. Power BI. Dynamics.

Productivity. Adobe. Trello. Asana. Fewer than Slack.

Dev. Azure DevOps. GitHub since Microsoft bought them.

Enterprise. Salesforce. ServiceNow. Workday.

Discord Apps

Around five hundred. Gaming and community focused.

Bots. MEE6. Dyno. Carl-bot.

Entertainment. Twitch. YouTube. Spotify.

Dev tools. GitHub and GitLab through bots.

Business stuff. Very thin.

Platform Picks by Team Type

Tech Startups

Go Slack.

Integrations hit different. Pricing works for small teams. Tech hires expect it.

Big Enterprise

Go Teams.

Compliance certifications matter. Microsoft infrastructure already exists. IT knows the admin console.

Creative Agencies

Either Discord or Slack.

Discord for voice rooms and casual energy.
Slack for client-facing work and deeper tool connections.

Open Source Communities

Go Discord.

Free forever. Easy onboarding. Developers already have accounts.

Microsoft Shops

Go Teams.

Already paying for it. Integrates with everything else you use. Why add overhead?

Migration Thoughts

Switching chat platforms hurts. Lots of disruption. Worth it sometimes.

When Moving Makes Sense

Current platform missing something critical.

Savings are meaningful. Big teams feel this.

Company consolidating tools anyway.

Compliance requirements demand it.

When Staying Put Makes Sense

Annoyances are minor.

Few people pushing for change. Not enough momentum.

Cost difference is marginal. Pain outweighs savings.

Project crunch time. Worst possible moment.

Moving Tips

Export everything. Message archives disappear otherwise.

Run both platforms briefly. Overlap catches falling items.

Set a hard cutoff date. Announce it. Enforce it.

Cover basics with everyone. Training prevents chaos.

Plan channel structure first. Don't copy the old mess.

Frequently Asked Questions

Slack usually makes more sense. Intuitive. Better startup tool integrations. Pricing fits small teams. Teams only if you're already Microsoft heavy.

Depends who's asking.

Small teams? Gaming companies? Dev communities? Creative shops? Bootstrapped startups? Works great.

Enterprise with compliance needs? Client communication? Regulated industries? Probably not.

Voice channels and casual energy build culture. Enterprise features don't exist though.

Sure. Lots of teams do this.

Slack for internal. Teams for three sixty-five meetings and external calls.

Slack for work. Discord for community bonding.

Teams for official. Discord for social.

Clear purpose for each tool prevents confusion.

Teams by a mile.

Together mode. Background blur and replacement. Live captions. Transcription. Breakout rooms. Recording.

Slack Huddles are limited. Discord video works but stays casual.

Enterprise security rankings.

Teams first. Compliance certifications everywhere.data loss prevention. eDiscovery.

Slack Enterprise Grid second. SOC 2. HIPAA capable. Encryption covered.

Discord third. Security adequate. Compliance features missing. Skip for regulated industries.

Normal use cases? All three are secure enough.

All three offer controls. Different approaches.

Slack. Channel settings. Keyword triggers. Do not disturb. Thread preferences.

Teams. Channel controls. Mention settings. Quiet hours. Priority contacts.

Discord. Server and channel settings. Suppress everyone pings. Custom sounds.

Slack refinement is generally strongest for work contexts.

Slack was designed for it.

Threads organize discussion. Scheduled send exists. Search works. Reminders work. Status updates show availability.

Teams improved but still leans toward meetings. Discord is synchronous by nature.

Other options exist.

Twist. Async first. Topic threads. Great for notification-hating distributed teams.

Rocket.Chat. Open source. Self-hosted. Privacy focused.

Mattermost. Open source Slack clone. Engineering teams like it.

Google Chat. Works for Google Workspace shops.

Smaller ecosystems than the big three though.

Final Thoughts

All three get the job done. Pick based on what actually matters.

Slack wins on integrations. Premium tool at premium price.

Teams wins on value inside Microsoft ecosystems. Video included. Email included. Storage included.

Discord wins on price. Free. Voice rooms included. Enterprise features excluded.

The platform matters less than the habits. Communication norms. Channel organization. Notification discipline. Those determine success more than which icon lives in your dock.

For more on building effective team communication, see our guide to team communication tools and async communication best practices.