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pricing:
amount:
$7.99/mo standalone, or bundled into Proton Workspace plans (free tier
available: up to 50 participants, meetings under 1 hour, no account needed for
4-person instant calls) (1) ·
Free and open source. Run by the non-profit Tor Project, funded by grants (historically
including US-government sources such as the State Department and NRL) plus individual donations.
Funding is not control here: the code is public, reproducible, and independently audited. (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)
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) ·
End-to-end encrypted video meetings from Proton, built on the open
MLS (Messaging Layer Security) protocol. Swiss-based and subscription-funded,
positioned as a privacy-respecting drop-in replacement for Zoom. (1)
usage notes:
rejected alternatives:
Showing below up to 3 results in range #1 to #3.