Business messaging platform with channels and integrations for teams.
Slack is a team communication platform founded in 2013 with a hiltonsoftware Score of 85/100. Slack pricing starts at $7.25/user/mo/month with a free plan available. Slack serves 32M+ users and competes with Microsoft Teams, Discord, and Zoom Chat in the team communication market. Key Slack features include Channels, Direct messages, and App integrations. hiltonsoftware.co rates Slack 4.5/5 based on user ratings (40%), feature depth (25%), value for money (20%), market presence (10%), and growth trajectory (5%).
Teams needing organized async communication.
Complete pricing breakdown for all Slack plans. Updated March 2026.
Side-by-side pricing and feature comparison of the top Git hosting platforms.
| Feature | Slack | Microsoft Teams | Google Chat |
|---|---|---|---|
| Free Plan | Yes (90-day history) | Yes (unlimited) | Yes (with Workspace) |
| Paid Plan Starting Price | $8.75/user/mo | $4/user/mo | $6/user/mo |
| Message History | Unlimited (paid) | Unlimited | Unlimited |
| Video Calls | Up to 50 people | Up to 300 people | Via Google Meet (100-500) |
| App Integrations | 2,600+ apps | 1,400+ apps | 200+ apps |
| AI Features | Slack AI ($10/user/mo add-on) | Copilot ($30/user/mo) | Gemini (included in some plans) |
| File Storage | 10 GB/user (Pro) | 1 TB/user | 15-5000 GB |
| Best For | Startups & tech teams | Enterprise & Office users | Google Workspace users |
Yes, Slack offers a free plan that includes 90 days of message history, 10 app integrations, and 1:1 audio and video calls. The free plan supports unlimited users in a single workspace. However, messages older than 90 days are hidden (not deleted) and become accessible again when you upgrade to a paid plan.
Slack Pro costs $8.75 per user per month (billed annually) or $10.50 per user per month (billed monthly). Slack Business+ costs $12.50 per user per month (annually). Enterprise Grid pricing is custom. Slack AI is an additional $10 per user per month add-on for Pro and Business+ plans.
Microsoft Teams is cheaper at $4/user/month for Teams Essentials vs Slack Pro at $8.75/user/month. However, Teams pricing usually assumes a Microsoft 365 subscription. For teams already using Microsoft 365, Teams is essentially included. For teams that prefer standalone messaging without the Microsoft ecosystem, Slack may offer better value through its superior integration marketplace (2,600+ apps vs 1,400+).
Yes, Slack offers an 85% discount for eligible nonprofits on the Pro plan, reducing the price to approximately $1.31 per user per month. Educational institutions can also receive significant discounts. Nonprofits can apply through Slack for Nonprofits program at slack.com/intl/en/nonprofits.
Slack AI is an add-on that costs $10 per user per month. It provides AI-powered channel recaps, thread summaries, and search answers that draw from your team's conversation history. Slack AI processes data within Slack's infrastructure and does not use customer data to train models. It is included at no extra cost for Enterprise Grid customers.
Reviewed by Alex Chen, SaaS & Productivity Analyst. Last updated: March 2026. Pricing verified. Methodology