Here is a squat machine that helps you work your glutes, back, shoulders, and lower body hard. The Exerpeutic TUG-N-Tight Squat Leverage Machine comes with app connectivity. It uses 4 resistance bands that you can adjust depending on how hard you want to push your body.
This exercise machine connects to your iOS or Android app for basic tracking. You can always subscribe for premium content, such as classes. This squat machine has a convenient smartphone holder.