ProductivityB2BProductivity

Slack

Slack is a messaging app for teams that replaces email with organized conversations. It lets users chat in channels by project or topic, send direct messages, share files, and jump into voice or video calls when needed.

Revenue

$2.3 billion

Paid Customers

156,000

Daily Active Users

Tens of millions

Monetization

Subscription-based model with freemium options and paid tiers for additional features.

Growth Strategy

  • Freemium model encouraged teams to start using it for free
  • Clear marketing message focused on faster collaboration and less email
  • Built-in sharing and word of mouth drove organic growth
  • Targeted larger organizations after product-led adoption

Compiled from public sources and estimates.

Similar Ideas

TeamSync

Easy

A simple tool for remote teams to sync up daily. Think of it as a quick check-in app where everyone shares their top tasks and blockers. It keeps everyone on the same page without endless meetings. Perfect for teams that want to stay aligned without the hassle.

Monetization

Monthly subscription starting at $5/user, with a free tier for small teams.

Key Tactics

  • Create a viral TikTok showing a day in the life of a remote worker using TeamSync
  • Run a giveaway for a free year of TeamSync to attract early users
  • Post user testimonials on LinkedIn to build credibility
  • Reach out to remote work influencers for shoutouts