Signal
Still user-respecting by default, but growing reliance on the nonprofit’s roadmap and network effects builds soft lock-in.
Lock-in Stage 2
Users are retained through switching costs, data, network effects, or ecosystem dependency.
End-to-end encryption by default and a nonprofit structure limit the usual ad-driven extraction. Still, lock-in shows up through contact graph effects, OS notification dominance, and the difficulty of moving non-technical friends. Rated stage 2: good for users, with mounting switching costs rather than open predation.
More in Messaging
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Telegram
2 Lock-inFast clients and huge channels; optional E2EE and a semi-centralized model create a distinct trade-off between freedom and trust in the operator.
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WhatsApp
3 ExtractionDefault chat for much of the world; phone-number identity and network effects make leaving socially costly, while Meta monetizes the ecosystem around it.
