L2TP/IPsec (Layer 2 Tunneling Protocol with Internet Protocol Security): L2TP is not secure itself, so it's generally paired with the IPsec secure-networking standard. The combination of the two was once thought to be very secure when properly implemented, but some VPN services suggest that you use OpenVPN instead. L2TP/IPsec has native support in Windows, OS X/macOS, Android, Chrome OS and iOS. Most VPN services support it.
With double, 2048-bit SSL encryption, it’s easy to see that NordVPN values your privacy. But the company has also worked hard to build up its server network to include more than 5,200 server locations in 62 countries around the world. The service also comes with a variety of security tools for encrypted chat and proxy extensions, and you can use up to six devices simultaneously, which is higher than many companies are willing to go.
The client is uniform across every device I have used (Windows, Android, and Amazon FireOS). I would like to say I was quite happy that ExpressVPN is one of the few VPNs (that seem trustworthy) that actually had a client in the Amazon App Store for the Fire tablets. No more need for sideloading, manual updates, or sketchy OpenVPN clone clients. At first the speeds weren't the greatest on the "Smart Location" server (New York). These speeds capped at about 12Mbps down and 10Mbps up. I have 150Mbps/15Mbps service. After hunting for other servers I found a few that provide roughly 60Mbps/15Mbps service throughout the US and Canada. DNS Leak tests were successful in that I am not leaking.
They even offer the most generous simultaneous connection count, with six simultaneous connections through their network, where everyone else offers five or fewer. NordVPN's network isn't as large as some of their competitors, so if you're trying to obfuscate your tracks, you might want a company with more servers. Otherwise, this company is clearly providing a winning offering.