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company: (Click arrow to add another value)
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protocol:
pricing:
amount:
$8.75/user/month (free tier available) (1) ·
Free account, no monthly fee on the entry (Standard) tier; pay-as-you-go
per-transaction (roughly 1% with a per-payment cap -- verify current rates). US ACH is
capped at $5,000 per transaction; $5 per chargeback above 15 in a month. (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) ·
'''Not recommended.''' Cloud-based team messaging platform with channels,
threads, and integrations. Free tier limits message history to 90 days and caps
integrations at 10. Included here for comparison against [[Mattermost]] and
[[Rocket.Chat]], the two self-hosted alternatives we do recommend. (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)
usage notes:
rejected alternatives:
None (1) ·
For deplatform resistance, see [[BTCPay Server]] (the
only self-hostable option). The broader case against card gateways is covered on the
Finance&Accounting category page. (1) ·
WhatsApp (uses the Signal protocol but is Meta-owned and harvests
metadata) and Telegram (chats are not end-to-end encrypted by default, weaker crypto). (1)
category:
Showing below up to 3 results in range #1 to #3.