***** ATTENTION: This application is in the testing phase and is part of a personal research project. I offer it free of charge and without ads and my intention is that it always be so. If you have any problems or suggestions, you can help me improve the app by writing an email to the address below. My intention is to continue improving the application so that it is as useful as possible. Please, before evaluating the application negatively, write to me. Thank you. ***** This application tries t