I'm not sure if you're joking, as the topic has been extensively discussed here in HN for the last six months, at least. Anyway, in short: encryption-wise Sign

I'm not sure if you're joking, as the topic has been extensively discussed here in HN for the last six months, at least. Anyway, in short: encryption-wise Signal is considered to be the state of the art, while Telegram is sneered at due to their homegrown encryption that isn't even enabled by default.