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This is partially incorrect. Signal's desktop does not require the mobile app to be active. Differently put, the desktop app does not depend on the mobile app'
by decrypt 6y ago
This is partially incorrect.
Signal's desktop does not require the mobile app to be active. Differently put, the desktop app does not depend on the mobile app's state. Mobile can be switched off/in airplane/far away from your physical location, but Signal desktop can continue to work.
For WhatsApp, the chats on desktop are e2ee too, but require the mobile phone to be active/online.
For Telegram, secret chats initiated on the desktop remain on that desktop app. They are not synchronized to the mobile apps.
- antihero 6y agoAh, I was wrong about Signal, I think perhaps one of the early desktop clients was a projected version? It does indeed seem to be working with my phone on airplane mode.