Tiger app is one of the movie streaming apps that are best for you to watch free movies. It's not on official Play store due to policy so you'll have to get Tiger APK file from website. Read the guide given below to see process of downloading Tiger on Android, Windows and macOS devices.
Download Android APK

Tiger app doesn't support direct installation on Windows, but it can be downloaded using an Android emulator.
You cannot install Tiger app in macOS directly, but it can be downloaded using an Android emulator.
Direct installation on Fire TV Stick is not possible with Tiger APK, but it can be downloaded using an Android emulator.
It is always recommended to update Tiger app in order to avoid an outdated version by adding new features and fixing security issues. Normally the app displays a notification when a new version of it is ready.
But if you don’t see the update popup for some reason or automatic update failed, you can manually update Tiger app. Just uninstall your current version and download Tiger APK from the Tiger app website.
Updates could feel time-taking and added effort but will give you improved features and latest content. Every update has bug fixes, stability improvements, and new categories of movies to watch.