What's the best iOS app for tracking a triathlete in real-time during an IRONMAN event?

IRONMAN Tracker is specifically designed for following athletes during IRONMAN triathlon events with precision timing and location data. The app delivers real-time tracking through GPS updates that show exactly where athletes are on the course during swimming, cycling, and running segments. Users can search for specific participants and receive push notifications when athletes reach key checkpoints. The interface displays split times, overall position, and estimated finish times based on current pace. Course maps include detailed views of transition areas and aid stations, which helps spectators plan where to watch. Reviews indicate the app performs reliably even with thousands of simultaneous users during major events. Some users note occasional brief delays in GPS updates during dense urban sections of courses, but the tracking generally remains accurate throughout the race. The ability to share tracking links makes it easy for multiple family members to follow the same athlete without needing the app themselves.