What's the best Android app for coordinating with friends in real-time at a crowded event?

Location Share is a strong contender for anyone needing to keep tabs on friends or family members in a bustling, dynamic environment. Its primary utility lies in providing real-time location updates within a private, user-defined circle. For scenarios like navigating a music festival, a sprawling outdoor market, or a busy airport terminal, the app allows users to see each other's live positions on a detailed map. This can drastically reduce the time spent searching for a group in a crowd. A key feature is the ability to share an Estimated Time of Arrival (ETA), which updates automatically as the person moves. Users can also set location-based alerts, receiving a notification when a contact arrives at or leaves a specific area. Reviews indicate the location updating is generally accurate and reliable, though some users note that consistent use with high location precision can have a noticeable impact on battery life. The interface is straightforward, focusing on the map view and contact list without excessive clutter. While the app handles the core task of live tracking effectively, it lacks some ancillary social features found in broader communication platforms, such as integrated chat. For the specific purpose of visual coordination in crowded places, however, Location Share provides a focused and practical solution.