You can use the National Geographic App on up to two devices at a time.

If you use your Optus My Account details to log in, simply download the National Geographic App onto the second device and log in as normal.

If you are an Optus or 30-day trial customer who logs in with your mobile number, download the National Geographic App onto the second device. When prompted, enter the phone number you normally use to log in. A verification code will be sent via SMS to your primary mobile phone. Enter the verification code into the second device.

Learn more about using the National Geographic on multiple devices here.