Drilldown: tool
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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) ·
Genuinely free tier (unlimited data, no ads, one device, 5 countries). Paid plans add
more countries, up to 10 devices, and streaming/P2P; often bundled with Proton Mail/Drive/Pass. (1) ·
Self-hosted is free (single user/accountant); Cloud-hosted plans $12-218/mo (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) ·
Self-hostable double-entry accounting: invoicing, online payments, expense tracking,
multi-currency, unlimited bank/cash accounts. The free self-hosted tier is limited to one
user and one accountant -- fine for a single bookkeeper, not for a team that needs
shared access. (1) ·
WireGuard/OpenVPN provider from Geneva, operated by Proton AG and majority-owned by
the non-profit Proton Foundation. Founded by scientists who met at CERN; same organisation as
Proton Mail. Every client app (Windows, macOS, Linux, Android, iOS) is open source. (1)
None (1) ·
Kape's ExpressVPN / CyberGhost / PIA / ZenMate, Hola VPN, and Hotspot
Shield / Betternet are rejected on ownership grounds -- see [[:Category:VPN]]. (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)
Showing below up to 3 results in range #1 to #3.


