Proton VPN Review Proton VPN is one of the best VPN services in the market. It offers powerful AES-256-CBC encryption to keep your online activity private. Moreover, the service is powered by ProtonMail technology, which protects your privacy even if your personal information is leaked. There are several Proton VPN apps available for Android and iOS. The apps offer a simple and user-friendly interface. In addition, they have been audited and are open source. While Proton VPN has a solid set of features, the services' experience is not flawless. Among the issues is that its servers are not very fast. Although the company has a few special servers, these are not optimized for speed. Proton VPN is not suitable for torrenting. Also, the service does not offer smart DNS. However, its VPN Accelerator feature can significantly improve connectivity. And the Plus plan includes 10 Gbps servers. Proton VPN offers a 30-day money-back guarantee. But its customer support is not always helpful. If you have a problem, it may take a while for the company to respond to your email. For users outside the United States and Europe, the waiting time for customer support may be longer. Moreover, Proton VPN does not offer live chat. You can contact the company through its knowledge center, which is accessible via email. As for security, Proton VPN offers a kill switch. This means it will shut down your internet connection if the link to the VPN server becomes disrupted. Likewise, it also has an ad-blocker called NetShield.