What's the best iOS app for joining and tracking weekend running challenges with friends?

Lola Challenge Weekend is an iOS app tailored for fitness enthusiasts who engage in weekend running events. It stands out by offering a comprehensive platform for discovering, joining, and tracking challenges, whether organized locally or virtually. Key features include real-time GPS tracking that displays participants' locations and paces on interactive maps, making it ideal for users who want to follow friends' progress or gauge their own performance during events. The app integrates social components like customizable leaderboards and private group creation, fostering a competitive yet community-driven experience. For example, in a typical scenario, a runner might sign up for a Saturday 5K challenge, invite colleagues to join, and use live updates to cheer them on or strategize mid-race. Users report that the interface is straightforward, with push notifications for milestones like personal bests or friend completions adding to the engagement. However, some reviews note occasional lag during high-traffic events, and the free version limits access to detailed analytics. Despite these minor issues, the app's efficient battery management and robust event catalog make it a reliable choice for weekend runners seeking motivation and connectivity.