http://secushare.psyciumunsqarzsehz5xlgsi2mg4dkvntwf5bwj5kwbcbazwiuhna2ad.onion/comparison
Regarding anonymity, Retroshare and Briar are placing
their bets on Tor instead.
It's easy to use Bitmessage the wrong way, like having law enforcement read your
private discussion groups once any participant has forwarded its address over
insecure means such as e-mail, SMS or Whatsapp, so don't use it for criminal purposes .