Similar guitar pedals that offer freeze-type effects operate entirely differently.
The PLUS’ algorithm “looks” for an attack and decay in your playing. That happens instantaneously which is the reason we like to call it the smart looper. As the result is an endless loop of what you’ve played a second ago, the sustained sound will have the exact characteristics of your playing.
But alternatives pick up the sound that you’ve just played and regenerate the effect with a synth engine. Just like a tuner pedal.
And in this case, the result will sound static, leaving behind overtones, dissonances, and other nuances that define your sound.