- Open the App Store application on your mobile device.
- Go to your profile, represented by an avatar in the top right-hand corner of the screen.
- Scroll down until you find the "Available updates" section.
- Select "Update" next to the "Trivia Crack" application.
You can also search the application in the search bar. If the app is already updated, you will see a box that says "Open" and if an update is available, the box will say "Update" instead.