Search and Rescue Aid Tool (SARAT) is developed to track objects/persons lost at sea. The predicted ocean currents and surface winds at the last known location are used to estimate the probabilities of finding the missing object/person in the sea. A Mobile App is also developed for handy use of SARAT. This App can assist with searching of over 64 types of missing ‘objects’ in the ocean including boats, ships, man-on-board, etc. App is available for download from Google Play Store under the name 'SARAT'.