Microsoft

Outlook

Ads in your inbox, and the new Outlook syncs third-party mail accounts through Microsoft's cloud.

  • SurveillanceYour data is the product.
  • Account wallSign up, log in, hand over your data, just to use it.

The exit

  1. Email, calendar and contacts with no ads and no tracking.

    Status
    Stable Mature and ready for daily work.
    License
    MPL-2.0
    Get Thunderbird ↗View source ↗

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Discord
  • Surveillance
  • Paywall

Discord

Nitro upsells everywhere, and a 2025 breach exposed ID photos users had submitted for age verification.

  1. StoatBetaAGPL-3.0

    The open-source chat platform formerly known as Revolt, with servers, channels and voice.

    Site ↗Source ↗
Salesforce
  • Paywall
  • Lock-in

Slack

Free workspaces hide every message older than 90 days. Your own history, held for ransom.

  1. ZulipStableApache-2.0

    Threaded team chat that keeps async discussion sane. Fully open source.

    Site ↗Source ↗
  2. ElementStableAGPL-3.0

    Encrypted, federated chat on the open Matrix protocol.

    Site ↗Source ↗
Zoom Communications
  • Paywall
  • Account wall

Zoom

A 40-minute limit on free meetings, and installing the app is all but forced.

  1. Jitsi MeetStableApache-2.0

    Video meetings in the browser. No account, no time limit, self-hostable.

    Site ↗Source ↗