A VPN client is software that runs on your device in order to securely connect it to a VPN server. All major platforms (Windows, macOS, Android, iOS, and Linux) come with a built-in VPN client that can be configured manually, although OpenVPN always requires a third party client to be installed. Most VPN services now offer custom clients and apps, which are the easiest way to use their service as they come pre-configured with all the correct settings. They also typically offer a range of funky and useful features that are not available by simply manually configuring the built-in VPN client. To clear up any confusion, a ''VPN client'' and a ''VPN app'' are exactly the same thing. Traditionally, the word client is used for desktop software and the word app for mobile software, but it is becoming increasingly common to talk about VPN apps on the desktop. The terms are interchangeable.
Many VPN services claim that if you pay their fee, they'll provide you unlimited data transmission and won't throttle your speeds. Generally, this is true, but I'll give you my standard official "unlimited" warning: It's been my experience that when a vendor says something is "unlimited," it's almost always limited. Somewhere, there will be a note in the fine print or terms of service that allows the vendor to limit you in some way. It pays to read those agreements.
CyberGhost is one of the better VPNs out there by virtue of having a number of helpful features, such as a killswitch, which will halt all traffic if the VPN tunnel is suspended for whatever reason, ad blockers and tracker blockers, and built-in shortcuts to sites and services which are either geo-locked or the likes of Twitter and Wikipedia, which are frequently censored by authoritarian goverments.
VPN technology was developed to allow remote users and branch offices to access corporate applications and resources. To ensure security, the private network connection is established using an encrypted layered tunneling protocol and VPN users use authentication methods, including passwords or certificates, to gain access to the VPN. In other applications, Internet users may secure their transactions with a VPN, to circumvent geo-restrictions and censorship, or to connect to proxy servers to protect personal identity and location to stay anonymous on the Internet. However, some Internet sites block access to known VPN technology to prevent the circumvention of their geo-restrictions, and many VPN providers have been developing strategies to get around these roadblocks.
Computer and software providers work hard to make sure that the devices you buy are safe right out of the box. But they don't provide everything you'll need. Antivirus software, for example, consistently outperforms the built-in protections. In the same vein, VPN software lets you use the web and Wi-Fi with confidence that your information will remain secure. It's critically important and often overlooked.
If you're using a service to route all your internet traffic through its servers, you have to be able to trust the provider. Established security companies, such as F-Secure, may have only recently come to the VPN market. It's easier to trust companies that have been around a little longer, simply because their reputation is likely to be known. But companies and products can change quickly. Today's slow VPN service that won't let you cancel your subscription could be tomorrow's poster child for excellence.
When it comes to servers, more is always better. More servers mean that you're less likely to be shunted into a VPN server that is already filled to the brim with other users. NordVPN, Private Internet Access, and TorGuard currently lead the pack with well over 3,000 servers each—NordVPN is at the forefront with 5,130 servers. But the competition is beginning to heat up. Last year, only a handful of companies offered more than 500 servers, now it's becoming unusual to find a company offering fewer than 1,000 servers.
When you're away from home or the office and you connect to the internet, you'll most often be doing so via Wi-Fi provided by your hotel or the restaurant, library, or coffee shop you're working out of in that moment. Sometimes, the Wi-Fi has a password. Other times, it will be completely open. In either case, you have no idea who else is accessing that network, and therefore, you have no idea who might be snooping on your traffic.
These folks have been around since 2010, and don't log anything. They provide a generous five connections, a connection kill switch feature, and some good online documentation and security guidance. Our one disappointment is that their refund policy is 7-days instead of 30, but you can certainly get a feel for their excellent performance in the space of a week.