Kodi is one of the most popular open-source media software applications that can be downloaded on any device. It is fully compatible with Fire TV and Firestick. Best of all, it comes free of charge. With Kodi installed on your device, you can install other Firestick apps and add-ons to improve your streaming experience. It gives you access to thousands of add-ons that have millions of entertaining movies, music, and TV shows.