Kodi is a free and open-source media player application that enables users to play and view most videos, music, podcasts, and other digital media files from local, network, and internet sources. It can be installed on various devices such as Android and iOS smartphones, tablets, and computers. Kodi supports numerous file formats and offers a customizable interface with add-ons to extend its features.

Yes, Kodi itself is a legal media player application and can be downloaded and used legally. Legal concerns mainly stem from how it is used, especially when streaming copyrighted content without permission. Users should follow all applicable laws and only access content they are authorized to view.

To install add-ons in Kodi, navigate to the 'Add-ons' section from the main menu. You can then download add-ons from Kodi’s official repository or install third-party add-ons by enabling 'Unknown Sources' in the settings. It is important to ensure third-party add-ons are from trusted sources to prevent security risks.

Yes, Kodi is available for both Android and iOS devices, allowing you to turn your smartphone into a portable media center. The app can be downloaded from the Google Play Store for Android devices and installed manually for iOS devices, as it is not available on the Apple App Store. Make sure your device meets the minimum system requirements for optimal performance.

Common problems include buffering, crashing, and add-ons not functioning properly. To address buffering, increase the cache size or use a wired connection. For crashes, ensure you are running the latest Kodi version and that your device meets system requirements. If add-ons fail, check for updates or reinstall them. Clearing the cache and restarting Kodi can also help fix minor issues.