This is really cleanly done!
Likes:
-> Excellent UI
-> Fantastic Transitions
-> Great fade in/effects on the way out
-> Well done subtle UX elements like moving the icons on mouse over
-> Well done [i] buttons made me curious enough to click on it
Improvements:
-> Maybe touch up the Roger that, let's rumble part to be in white text by default, then like orange or something striking on mouse over
-> Potentially include an about/privacy/disclaimer of referral links (if you use them) to increase user trust - site looked too good to be true.
-> Potentially increase size of "download in the app store"
-> Would love to see top rankings to know what my ratings are going towards; I feel unmotivated to click more than like 6 or 7 once the novelty wears off
-> Would love way to share a comparison I have been shown with friends (Will also increase virality of app), as well as my history
-> Potentially an undo method somehow if the user misclicks, I know I did once
Overall: great job and two thumbs up!
