LabF is an application aimed at all those interested in presenting the values of physical measurements properly using initial concepts seen in the Physics Laboratory discipline.Establishing the value of a physical measure correctly, or even determining an indirect physical measure, often requires calculations that traditional calculators are not able to do directly, requiring you to do it step-by-step, which generates significant time consumption . Thus, LabF was created to facilitate these calculations.The LabF app provides you with: - Display the number of significant digits of a given number informed, as well as present the number informed with the amount of significant digits desired; - Make calculations of the mean value and standard deviation of a set of measurements performed; - Perform operations established by the error propagation theory, thus showing the final values of the measure in standard form and in scientific notation, in which in each operation the equation used by the application to calculate the values is presented. - and many others.