Not sure I can answer that. If there’s any kind of billing, they’d at least need to make sure the computer connecting to a tunnel is being used by a paying user. Mullvad does a privacy-minded token system for that, but it’s still a kind of login.
If you’re looking for private browsing without a login, you’ll want to use TOR.
Why couldn’t they just do all of that without a sign in if it’s free though?
Why do any VPNs require an account?
Not sure I can answer that. If there’s any kind of billing, they’d at least need to make sure the computer connecting to a tunnel is being used by a paying user. Mullvad does a privacy-minded token system for that, but it’s still a kind of login.
If you’re looking for private browsing without a login, you’ll want to use TOR.
Is their vpn free? You’re signing up for a VPN service that has a limited amount of bandwidth provided at no cost.
Their angle isn’t to sell your data, it’s for you to want to upgrade to the paid plan.
You won’t find a VPN that has no ability to share information about you.