While you can install Fongo on multiple devices, login is limited to one device at a time. For example, if you have the application running on your PC and your Android phone, you would need to log out from your PC before you could access the application on your phone.
Note: If you download and register the Fongo app on iOS, then you buy an Android and wish to use your Fongo account on it, you will need to contact our support team so they change your account type to the proper operating system.
Contact support: https://support.fongo.com/hc/en-us/requests/new
Note: If you have the Fongo Home Phone service, you will need a different account for your Analog Telephone Adapter (ATA).