It's around $50 a year for the domain, which is a cost I'm happy to eat as I'm using it myself. But yes, if you're working on top secret projects or something

It's around $50 a year for the domain, which is a cost I'm happy to eat as I'm using it myself. But yes, if you're working on top secret projects or something that might leak sensitive data it's probably not a good idea to use this or any of these other services.