You can change your email address from the GigSky account settings by following the steps given below.

Using the GigSky web app

1. Go to the web app https://app.gigsky.com/ and log in.
2. In the menu, click Account and select Change Email.
3. Enter the new email address and the current password for the account.
4. Click Save. 
5. You will receive a verification email. Click the link in the email to verify the new email address.

Using the GigSky App

1. Sign in to the GigSky app.
2. Tap the Account icon (bottom right).
3. Tap Change email.
4. Enter the new email address and the current password for the account.
5. Tap Save.
6. You will receive a verification email. Click the link in the email to verify the new email address.

Using GigSky on iPad

1. Tap Cellular Data > Manage GigSky Account... > Account Settings
2. Tap the Account icon (bottom left).
3. Tap Change Email.
4. Enter the new email address and the current password for the account.
5. Tap Save.
6. You will receive a verification email. Click the link in the email to verify the new email address.