To update YouTube Pro, visit the source where you initially downloaded it, check for the latest version, download the new APK, and install it over the existing app.
3. **Download the APK**:
- Visit the website and find the download link for the "YouTube Pro" APK.
- Download the APK file to your device.
4. **Install the APK**:
- Once the download is complete, open the APK file from your device's download manager or file manager.
- Follow the on-screen prompts to install the app.