Your mobile hotspot password is in your phone's hotspot settings.

iPhone

  1. Open Settings.
  2. Tap Personal Hotspot.
  3. Check the Wi-Fi Password field.

Tap Wi-Fi Password if you want to view or change it.

Google Pixel and Most Android Phones

  1. Open Settings.
  2. Tap Network & internet or Connections.
  3. Tap Hotspot & tethering or Mobile Hotspot.
  4. Select Wi-Fi hotspot or Set up Wi-Fi hotspot.
  5. Check the Hotspot password field.

The menu names differ by phone manufacturer and Android version.

Samsung Galaxy

  1. Open Settings.
  2. Tap Connections.
  3. Tap Mobile Hotspot and Tethering.
  4. Tap Mobile Hotspot.
  5. Check the Password field.

Some Samsung Galaxy phones also let you connect another device by scanning the hotspot's QR code.