surfshark

Install command: 
brew install --cask surfshark

Name: Surfshark

VPN client for secure internet access and private browsing

https://surfshark.com/

Cask JSON API: /api/cask/surfshark.json

Cask code: surfshark.rb on GitHub

Current version: 4.22.1,3053

Current version requires: macOS >= 11

Analytics:

Installs (30 days)
surfshark 234
Installs (90 days)
surfshark 707
Installs (365 days)
surfshark 2,516