The following tests might help you decide whether or not your iOS VPN is providing adequate protection for your data: Before signing up for a VPN, be sure you know how your data will be used and shared. If you're worried that your true IP address might be out there, you can perform a DNS leak test. Verify that the VPN's confidentiality and authentication mechanisms are cutting-edge and robust. Make sure your iOS VPN is providing the necessary privacy protection by learning about the user reviews and reputation for user privacy.