HopOnGo travel companion app tracks all of GO trains and buses using its precise GPS location, to give you exact departure and arrival times. Never be late again! It’s the only GO Transit app that brings you real-time schedules & push notifications. With its push notifications you will be alerted if your train or bus is running late. Instantly get Presto Service Guarantee notifications if your trip is delayed. If your train arrival is delayed by 15 minutes or more, we want to make sure you get notified and get credit for what you paid for.