OC Transpo is the official application for Ottawa's public transit system, developed by OC Transpo Corporation. The app uses GPS data to locate nearby buses and provides real-time predictions on their arrival. It works on iPhone, iPad, and iPod Touch, and identifies your location and nearest bus stops using iPhone GPS. You can see the closest bus stops on an easy-to-read map and predict real-time arrivals of buses at your stops.

OC Transpo also allows you to favorite your bus routes and stops, search for bus routes and stops, and get live updates for detours and cancellations on your iPhone. Moreover, you can see the current fare information on the app. With OC Transpo, you can easily plan your trip and get around Ottawa using public transit.

The app is free to download and use, making it an accessible and convenient tool for anyone living in or traveling to Ottawa. Overall, OC Transpo is a reliable and user-friendly app that helps you navigate Ottawa's public transit system with ease.