Taylor Otwell have replied to a similar question here before: https://laracasts.com/discuss/channels/general-discussion/en...

> They really aren't similar at all. Forge manages sub-domains, Nginx, Cron jobs, SSL certificates, queue daemons, recipes, etc. Envoyer does none of those things. Envoyer is solely focused on deploying PHP applications to multiple servers with zero downtime.

Forge does server provisioning and Envoyer does deployment of PHP web applications. So not quite the same at all.