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to be clear though notifications do the decryption on device themselves. signal uses apple/play services only to notify the device that there has been a message, none of the contents are delivered over these services. if you cant trust the device to do that then no messaging app could ever be secure enough

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> if you cant trust the device to do that then no messaging app could ever be secure enough

This is the whole point. Signal actively prevents me from using it outside of the Apple-Google duopoly. Other messaging apps are not like this.

De-jure it's against the ToS, but it's not being enforced besides "don't be an asshole, don't abuse the network and be careful with Signal branding". Technically, you can use Whisperfish on SailfishOS, Flare on mobile-linux-of-the-day or even signal-cli as a primary device.

Last time I tried to use Signal, it required "a mobile device" to be in charge of all other "desktop" devices.

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