Proton icon

Proton

★★★★★ 4.5
VS

Rocket.Chat

★★★★ 4.1
Feature Proton Rocket.Chat
Pricing Free / from $3.99/mo Free / from $4/mo
Free Plan ✓ Yes ✓ Yes
Rating 4.5 / 5 4.1 / 5
Best For privacy-advocates, journalists, activists, security-conscious-users developers, self-hosted-teams, enterprises, customer-support-teams
Founded 2014 2015
Encrypted Email
Vpn
Cloud Storage
Calendar
Password Manager
Aliases
Self Destructing Messages
Channels
Direct Messaging
Video Conferencing
Omnichannel
Marketplace
Federation

✓ Proton Pros

  • End-to-end encryption for all services
  • Swiss-based with strong privacy laws
  • Open-source and independently audited
  • Comprehensive privacy suite (mail, VPN, drive, calendar)
  • Free tier available for all services

✗ Proton Cons

  • Free storage is limited (1GB for mail)
  • Less feature-rich than mainstream alternatives
  • Search functionality limited due to encryption

✓ Rocket.Chat Pros

  • Fully open-source
  • Self-hosted option
  • Omnichannel customer support
  • Highly customizable

✗ Rocket.Chat Cons

  • Requires server resources to self-host
  • Less polished than Slack
  • Plugin quality varies

The Verdict

Proton is built for privacy advocates and journalists, with a focus on encrypted-email and vpn. Rocket.Chat targets developers and self hosted teams and leads with channels and direct-messaging.

Both tools come in at similar price points ($3.99/mo for Proton, $4/mo for Rocket.Chat), so pricing won't make the decision for you.

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

Proton edges out on user ratings (4.5 vs 4.1). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.

Feature-wise, Proton offers broader built-in capabilities (7 features vs 6), while Rocket.Chat takes a more focused approach — which can mean a simpler, faster onboarding experience.

Bottom line: Proton has a slight overall edge — but if fully open-source matters most to you, Rocket.Chat may still be the right call.

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