Use a web browser on your phone to access the official 99win link.

Click the 'Download App' button and select the version compatible with Android or iOS operating systems.

Go to Settings > Security and allow 'Install apps from unknown sources'.

Open the downloaded file, click 'Install', and wait for the application to be automatically set up on your screen.

Open the 99win app, log in to your account, and start participating in exciting games.