What is Reddit's opinion of BACKTRACKIT?

From 3.5 billion Reddit comments

Recently discovered BACKTRACKIT. It's a pretty neat app that lets you mute the leading instrument or vocals from a song (I use that for ringtones, works really well for some songs and the app lets you save the result to a new file). Also has many music tuning options which should be helpful to people who play music or want to practice, and BPM detection.

Edit: screenshot

Backtrackit ?

Here you go.

https://play.google.com/store/apps/details?id=com.superpowered.backtrackit

https://play.google.com/store/apps/details?id=com.superpowered.backtrackit works really good. Like it sounds good but I have a hard time differentiating you and sam

It's geared towards music, but BACKTRACKIT can do this.