Calculadora de Muestras is an Android application that helps users to determine the sample size required for a statistical survey or experiment. The app provides a simple and straightforward interface to calculate the sample size based on the user's input for the confidence level, confidence interval, population, and heterogeneity value. The app uses the formula for calculating the sample size, which is widely accepted by statisticians and researchers.

The app is designed to be easy to use, even for non-experts in statistics. It provides a clear explanation of the terminology used in the calculation and guides the user step by step through the process. The app is free to download and use, and it does not require an internet connection. Overall, Calculadora de Muestras is a useful tool for anyone who needs to determine the sample size for a statistical survey or experiment.