"What is a Second Cousin" is a free educational app developed by CousinsClub.org. The app aims to help users understand the often-confusing terminology surrounding cousin relationships. With this app, users can easily calculate and understand the genealogical relationship between two people and compare their relationship to a common ancestor.

The app features a Cousin Relationship Calculator that allows users to quickly determine cousin relationships. Additionally, the app features a Cousin Chart Diagram that provides a clear visual representation of the relationship between two people. The app also includes easy-to-follow explanations on cousin relationships, making it a valuable educational tool.

Overall, "What is a Second Cousin" is a helpful app for anyone looking to understand the complexities of cousin relationships. It is easy to use, informative, and free. However, it is important to note that the app is only available on Android and is developed by CousinsClub.org. For more information and support, users can visit the CousinsClub.org website.