Nothing to really compare it too, if you want to try a stacker scooper you pretty much have to try this one. BUT, don't waste your money. I don't care what firmness your ice cream is. We tried extra firm sub zero ice cream, soft, and near melting ice creams. All with the same basic issue. The ice cream rarely sticks into the scooper. So you take the scooper out and the ice cream is still in the container. Just near impossible to get the ice cream to break free from itself.
I have complaints about it's design after using it. But honestly that hardly matters because those flaws will not make a difference in it's ability to work well. I don't know how the Thrify's staker scooper works. But they also have a completely different tub based ice cream storage and specific temperatures, etc.
Put simply, you will get frustrated getting any ice cream to stay in the scooper and you will crush and bend the ice cream containers while doing it. Our counter was an awful mess when we were done trying it. Save you money and stick to the standard ball shaped scoopers.