Great Cycle Challenge USA is a free Android app developed by Great Cycle Challenge for the Lifestyle category with a focus on Health & Fitness subcategory. The app is designed to help users record their bike rides and raise funds for kids' cancer research. With GPS integration, the app records the distance of each ride and syncs it with the user's fundraising profile. Participants can set their ride and fundraising goals, post updates, view past rides, thank sponsors, enter offline cash donations, and view leaderboards.

The app has an intuitive user interface, and its features are easy to navigate. Users can track their progress and adjust their goals accordingly. However, it is important to note that the app continues to use GPS in the background, which can significantly decrease battery life.

Overall, Great Cycle Challenge USA is a great app for cycling enthusiasts who want to make a positive impact on society and contribute to cancer research.