On the App and mobile web, you can see who has Liked or Fav'd you via the Prospects tab 
> LIKES or FAV’S. Please note that you while you can see who has Fav'd you, you will need to upgrade to at least Premium in order to see who Liked you and also who Matched you (ie - the people who Liked you back or Fav'd you back).
On the website, you will find the similar icon on the top-right which will take you to your Prospects page.