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My main problem with Signal (and similar apps like Wire) is syncing messages across devices. I'd often find myself turning on my home computer after work and having to wait a while for the desktop app to finally finish syncing with my phone and allowing me to chat. Call me spoiled but after experiencing that every night it started to grate on me.

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WhatsApp uses the Signal protocol, but somehow managed to make this work with WhatsApp Web, so the limitation isn't inherent to the technology.

The last time I had looked into it, somebody on the Signal github suggested otherwise. I hope you're right but either way that doesn't change the fact that this problem is still present today.

WhatsApp web does key exchange over QR code, which is a fascinating choice.

Doesn't this apply to 100% of communication apps (IRC, chat, email, social media)? What's the alternative?

Wire takes a few seconds to sync messages to a powered on device, same as an email client.

I'm glad it's working well you but neither Signal nor Wire took acceptable amounts of time to sync my messages versus every other networked app I use.

Do you have a github issue link for Signal or Wire?

xmpp seems to have good syncing

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