IRFMM is a free Android application developed by the Centre for Railway Information Systems. The app is designed for use at Wagon Maintenance Depots by railway users. It falls under the Travel & Navigation category and offers functionalities for Freight Yard, Sick Line, and ROH.

The app's major functionalities include the ability to add wagons to the master list, create a rake, receive a rake from FOIS, and manage wagon composition, among others. The ROH and Sick Line functionalities include Wagon Arrival, Verify Wagon, Local Pass, Wagon Discard, Mechanical Fit/TECO, and Wagon Dispatch.

The app's Yard functionality offers a Rake List Screen, where rake details like rake name, rake ID, and creation date are displayed to users. The Rake Build/Formation feature allows users to update wagons present in the rake and build a rake after confirming all details are correct. Additionally, users can add new wagons to a rake.

Overall, IRFMM is a useful app for railway users who need to manage freight maintenance.