Great app, worth way more than $12. Used this app for a home karaoke setup, with usb mic and hdmi cable going to the TV, works great. Basically its pulling karaoke songs from YouTube and has about 95% of the songs I want. But if there’s a song you want on YouTube, it’s really easy to add it to the app. Btw I think all issues with YouTube ads appearing has been fixed, haven’t seen one ad in 3+ hours of usage. Protip: Use GarageBand for mic playback (Google: “GarageBand mic monitor”), it works well and provides higher quality audio.