Amazon product research tool that is for some reason called Unicorn Smasher
Unicorn Smasher is not available for iPhone but there is one alternative with similar functionality. The most popular iPhone alternative is Shopkeeper. If that doesn't work for you, our users have ranked 16 alternatives to Unicorn Smasher, but unfortunately only one is available for iPhone. If you can't find an alternative you can try to filter for web or SaaS options.