Guardian Firewall alternatives

Guardian Firewall is a proprietary app for iPhone. It offers a free version with paid upgrades (subscription $8–10). Developed by Sudo Security Group, Inc..

Alternatives

• Proton VPN
• Mullvad VPN
• Psiphon
• IVPN
• Shadowsocks
• Outline VPN
• NordVPN
• Hotspot Shield
• Private Internet Access
• CyberGhost VPN
• Yggdrasil
• TunnelBear