Ivacy

Ivacy offers a good range of features including a kill switch. There are a few more such as no automatic connection when your phone or laptop connects to an untrusted Wi-Fi network, nor any way to save favourite servers - or see how busy a particular server is. One of the benefits of Ivacy is that it has apps for so many devices. You’ll probably find it in your smart TV’s app store, it’s available on the Amazon Fire TV Stick and there are setup guides on Ivacy’s website which explain how to get it running on many other devices, some of which don’t natively support a VPN.