oops bought wrong plugin

Hi, I hesitated but ended up making wrong decision on which of your plugins I need. Please confirm my suspicion. I have bought Echo RSS Feed Post Generator Plugin for WordPress But all I need is to be able to show my blog posts WITH featured image in a rss feed on my main website. I think I should ahve bought this one? : URL to RSS - Custom Curated RSS Feeds, RSS From Any Site   Thank you for your assistance