In order to switch between multiple email accounts on one device, consider the following steps:

1. Determine the compatible email service/app that is used on the device.
2. Download the email service/app.
3. Log into the primary email account.
4. Locate the Account setting options.
5. Select the Add Account option.
6. Enter the credentials for the new email account.
7. Confirm the new account info and save the changes.
8. Repeat the previous steps for each email account desired.
9. Use the settings to determine the default email account.