The only 100% safe way to get the is directly from the provider:

To download the Private Internet Access (PIA) installer or configuration files, visit the official PIA Downloads page Quick Download Guide Select your OS (Windows, macOS, or Linux) to get the direct installer. Apple App Store Google Play Store links, or download the Android APK directly for manual installation. Configuration Files:

Private Internet Access Download File

The installation process varies slightly depending on your device's operating system: Android - Installing the PIA APK File