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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) ·
Custodial crypto processors like Coinbase Commerce and BitPay: they
take crypto but hold funds and impose KYC, reintroducing exactly the operator-freeze risk
that self-custody removes. If the goal is deplatform resistance, a custodial crypto gateway
gives up the main advantage. (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)
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Showing below up to 3 results in range #1 to #3.