The Singing Machine Karaoke app offers unlimited access to thousands of full-length karaoke videos streamed over the Internet via subscription and may be used with Singing Machines that feature Bluetooth. 

The Karaoke Store offers thousands of karaoke videos to purchase and download individually for use on your Singing Machine karaoke system or multimedia player.

While the two services are different and a mobile app subscription is not compatible with the Karaoke Store, your account will allow you to log in to both the app and the Karaoke Store. 

Additionally, you can play songs that you purchased on the Karaoke Store in the Singing Machine Karaoke App