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Free and open source (Apache 2.0). Self-host at only your hosting cost, use the free
public meet.jit.si instance, or buy 8x8's managed Jitsi as a Service (JaaS) for scale/branding. (1) ·
Free, no ads, no paid tiers. Run by the Signal Foundation, a US 501(c)(3) nonprofit
funded by grants and donations; by charter it cannot be acquired. (1) ·
Software is free; self-host on existing infra, or managed CiviCRM hosting from
roughly $10-100/mo depending on tier (1)
source license:
hosting:
description:
None (1) ·
End-to-end encrypted 1:1 and group messaging, plus voice/video calls, built on
the audited Signal Protocol (Double Ratchet + X3DH). ~40M monthly users. Registration
requires a phone number; usernames (added 2024) let you start chats without sharing it. (1) ·
Open-source CRM purpose-built for nonprofits and advocacy groups -- donor
tracking, campaign management, event registration, and membership -- rather than a
generic sales CRM repurposed for fundraising. Integrates as a plugin into WordPress,
Drupal, or Joomla. (1)
usage notes:
rejected alternatives:
Showing below up to 3 results in range #1 to #3.