ABSTRACT. One of the most important adaptation measure to Climate Change and Variability is the development of tools and systems to support agricultural activities management and preservation of natural resources. The GRAS Unit of the National Institute of Agricultural Research (INIA Uruguay), elaborate and make available tools and products to contribute to these goals (www.inia.uy/gras). In this regard, "SIGRAS App" was developed, with up-to-date information (estimates of soil water balance variables, NDVI) and historical data (NDVI, soil features, water balance, climate and basic cartography) as well as Tools and Alerts. Information developed with MGAP, INUMET, IRI. Available:Android, iOS and WPhone,