Key Collector Comics is a mobile app that serves as a database and price guide for collectors of valuable comics and highly-sought after issues. It is the world's first resource to focus exclusively on key issues, and it simplifies the hobby of collecting by combining everything a collector needs into one, simple to use, free mobile app. The app allows users to catalog their inventory or build a wish list of key issues, select the condition of their comic using the CGC and CBCS grading scale, and receive key issue notifications directly to their phone. Key Collector Comics has been endorsed by several notable figures in the comic book industry.

The app defines a "key" issue as a comic book that has some instance of significance attached to it, such as character first appearances, death and origin stories, variant covers, iconic cover art, rare and recalled issues, and classic stories. Key Collector Comics allows users to search for over 2,500 characters in 1,700 titles from major publishers like Marvel, DC, Dark Horse, Valiant, Image, and many independent producers from the Golden Age of comics to today. The database is updated at least once a week to include new character debuts that have been announced.

Key Collector Comics offers several features to make the collecting experience more fun and efficient. Users can search by title, character, writer, artist, or publisher, browse by a changing list of categories, catalog what they own with one tap, build a wish list of priority comics, select the grade of their book, choose to use the app's price guide or input their own dollar value, and record the amount they paid for a comic to accurately view the sum total of their investment as it fluctuates based on comic book market conditions. The app also includes a simplified price guide and grading assessment, the ability to expand or collapse displayed comic covers, and a filtering option that lets users search in a specific comic book age.

Overall, Key Collector Comics is a valuable resource for collectors of valuable comics and highly-sought after issues. It simplifies the hobby of collecting by combining everything a collector needs into one, simple to use, free mobile app. The app defines a "key" issue and allows users to search for over 2,500 characters in 1,700 titles from major publishers and many independent producers. It offers several features to make the collecting experience more fun and efficient, including a simplified price guide and grading assessment, the ability to expand or collapse displayed comic covers, and a filtering option that lets users search in a specific comic book age.