Lark

★★★★ 4.3
VS

Rocket.Chat

★★★★ 4.1
Feature Lark Rocket.Chat
Pricing Free / from $12/mo Free / from $4/mo
Free Plan ✓ Yes ✓ Yes
Rating 4.3 / 5 4.1 / 5
Best For startups, asian-market-teams, small-businesses, cross-functional-teams security-conscious-organizations, government, self-hosters, enterprises
Founded 2019 2015
Messaging
Video Conferencing
Documents
Spreadsheets
Project Management
Approval Workflows
Channels
Direct Messaging
Video Calls
Federation
E2e Encryption
Marketplace

✓ Lark Pros

  • All-in-one suite (chat, docs, video, tasks)
  • Very generous free tier
  • Fast and responsive
  • Built-in approval workflows

✗ Lark Cons

  • ByteDance ownership raises data concerns
  • Less popular in Western markets
  • Some features feel overwhelming

✓ Rocket.Chat Pros

  • Fully open-source and self-hostable
  • End-to-end encryption
  • Federation support between instances
  • Highly customizable

✗ Rocket.Chat Cons

  • Self-hosted requires maintenance
  • Mobile apps less polished than Slack
  • Smaller app ecosystem

The Verdict

Lark is built for startups and asian market teams, with a focus on messaging and video-conferencing. Rocket.Chat targets security conscious organizations and government and leads with channels and direct-messaging.

On pricing, Rocket.Chat is the clear winner for budget-conscious users — starting at $4/mo compared to $12/mo for Lark. That $8/mo difference adds up quickly for growing teams.

Both offer free plans, so you can test each with your real workflow before committing to a subscription.

This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.

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