A Stop Notifier For CUMTD. Often, passengers using Transit services miss the bus stops where they are supposed to get off. There are a lot of mobile applications through which one can look into the updated bus/train schedules. It is convenient if there is some kind of alarm functionality incorporated to such applications where the passenger is notified when he arrives his destination stop. Building on this purpose, we took the opportunity to develop an android application that notifies its users while on transit. Users can select the desired bus line and destination station from the populated list and then play with the alarm settings as when to be notified – before the stop, at the stop or at a particular time. This location-based service has been implemented using Google API 10 and Android SDK 2.3.3 platform and other relevant technologies such as Internet connectivity (3G/wifi) and GPS. Currently, the application is built for CUMTD – Transit service for Urbana Champaign.