Windscribe dev here: It auto renews at the end of the 10 year term.

There is a review (with comments) here: https://www.bestvpn.com/windscribe-review/

No such thing as Free VPN. Unless bandwidth became free, the only endgame here is selling user data to who-knows-who. Opera’s Chinese ownership also doesn’t help. Here is a great browser based freemium VPN: https://windscribe.com