Chomp is a social app discovery iPhone app. It’s a bit like Yelp for the App Store. In this interview with its creators Ben Keighran and Cathy Edwards we talk about the app, the momentum its building, the recommendation algorithm that makes it tick and how app developers can use it to build buzz for their own apps. You can listen using the Flash player below, download the MP3 , or subscribe to the iPhone Developer Podcast using the instructions at the bottom of this post. For easy scanning of the interview, here’s what was covered and when: 01:00 Chomp: “Social app discovery” or “Yelp for the App Store” 03:00 Reviews like a Twitter stream; follow/followed 06:00 111,000 reviews in the first seven days 08:00 Tens of thousands of users 09:00 A more fair view of apps vs. ratings/reviews in the App Store 11:45 600 reviews/hour 14:00 Recommendations via collaborative filtering (e.g., Amazon or Netflix) 17:00 More reviews = more recommendations 18:30 Algorithm’s training data mined from the App Store 22:00 Revenue from affiliate program 24:30 Chomp first app review/recommendation app to be featured by Apple 25:45 Building buzz for Chomp 28:00 Using Chomp to build buzz for your own apps Keep up to date with our iPhone developers’ podcast Subscribe to our iPhone Development Podcast in one of two great ways: Use the podcast’s feed with the feed app of your choice: http://podcast.mobileorchard.com/feed/podcast/ Subscribe using iTunes by clicking here

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Podcast: Interview With Social-App Discovery App “Chomp” Creators Ben Keighran and Cathy Edwards