Watch Marathon is an iOS and Android app that allows users to track their favorite TV shows with friends and family. The app has gained over 15,000 users quickly through word-of-mouth and social media features. Its founder, Josh Pensky, drew inspiration from his own love of TV and the desire to create a community for like-minded individuals. The app simplifies the process of finding new TV shows by aggregating content across multiple streaming services. With its universal search and watchlist, Marathon aims to alleviate the stress of navigating through numerous streaming options. The app's tech stack is built on React Native and Ruby on Rails API, with Railway providing a flexible and cost-effective hosting solution for Josh as a solo founder. Users can get started by downloading the app from the App Store or Play Store, following the platform on social media, and exploring its features to stay up-to-date with new releases.