Can I use the PianoTrax app on more than one device?


Yes, you can use the PianoTrax app on multiple devices. However the subscription is not cross platform, so it will work on multiple Apple mobile devices or multiple Android mobile devices. 

Use the same email address and password for the website and the app. 

You can only be logged into one mobile device at a time. As soon as you log in to a new mobile device it will kick you out of the previous one.