[Cryptography] Signal planning no support for plaintext SMS

[John Denker]

On 11/1/22 5:45 PM, John Gilmore wrote in part:

> I decided that a Signal Foundation that insisted on grabbing and
> keeping a copy of every user's contact metadata was not a trustworthy
> Signal Foundation.

So ... does anybody have suggestions for how to proceed?

There are more than 100 alternatives listed here:
   https://alternativeto.net/software/signal-private-messenger/

Some comparison charts are here:
   https://en.wikipedia.org/wiki/Comparison_of_cross-platform_instant_messaging_clients

Some of the apps are open-source.
Has there been any serious vetting?

Because of network effects (Metcalfe's law, roughly speaking)
I am attracted to apps that already have a large user base,
but the largest ones have, ahem, not-so-great provenance and
not-so-great track records.