Kodi & Apks offer unlimited streaming content, but could also get you into legal trouble if caught streaming free Movies / TV shows / Sports. Kodi, Apks users are strongly advised to always connect a VPN while streaming online. A good VPN hides your identity, bypasses government surveillance, geo-blocked content, and ISP throttling (which also helps in buffer-free streaming).
I use IPVanishVPN which is the fastest and most secure VPN. It is very easy to install on any device including Amazon FireStick. You Save UP TO 70% OFF on its annual plans. Also, it comes with a 30-day money-back guarantee. If you are not satisfied, you can always ask for a refund.