Send Arnel your device ID

Do this once per iPhone, in Safari. It lets Arnel add your phone to his test apps.

Get my device ID

1. Tap the button, then Allow. iOS says "Profile Downloaded".
2. Open Settings. Tap "Profile Downloaded" near the top (or General, VPN & Device Management).
3. Tap Install and enter your passcode. Nothing stays installed: iOS sends the ID and returns you here.

iOS labels the profile "Unverified" because it isn't signed by a company. It only reads the device ID, model and iOS version.