The software is designed to give you a full screen user interface that looks good on a TV and which you can control with either a remote control or a keyboard and mouse. There are also a number of apps that let you use your smartphone as a remote control.
One of the latest is Kore, an open source Android app. Oh yeah, it also happens to be the official Kodi remote app for Android.
Most other apps are created and maintained by third-party developers and some are closed-source. Kore has the official support of Kodi’s developers.
So what can it do?
You can use Kore as a basic remote to play, pause, fast forward, or rewind music or videos. There’s also support for switching subtitle and audio tracks. Kore also lets you browse your media library for movies, TV shows, pictures, music, and more.
For now some third-party remote apps offer more features than Kore, including better search tools or support for Android Wear.
To use Kore you’ll need to go into the system settings of Kodi and enable a webserver so that your media center app can be controlled via HTTP. You can find more details on configuring Kodi (or XBMC if you have an older version of the software) at the Kodi forum.