The 30 Cow Days app is designed to cater to the livestock grazing management community. For a cow-calf and/or yearling production system, the design will allow you to capture overall land and forage production on an acre basis. Included is a built in system to assess overall forage growth, alerts for when to move cattle and year to year storage of data for each pasture and the whole farm or ranch. The app was developed by the grazing research and extension team at Michigan State University.