Tutorial of use and functions of the application:
https://youtu.be/dZYKmOBywZA
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IMPORTANT: The application is still under construction, so errors in writing or results could appear, even some in execution with some devices.
Any help in detecting errors is appreciated. This is possible by sending a message to the Developer's email including version, subject, question number and brief description of the error in question.
By default, most exercises include a margin of error in the results of 1% to 5%, depending on the magnitude of the error. This is intended to be adjusted in future reviews, specific to each year.
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Tutorials on solving the included exercises will be uploaded on the following channel: https://www.youtube.com/channel/UClaKI94zgKGkhjRKV6eSm_g
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The exercises are always different, so they can be used over and over again by the same user to review the same topic, or by different users (for example, for the same group) so that each user has their own series (unique and different from the rest).

The program has six modes of employment.
In the modes of exercises by block, sequential test and single exercise, a graded button is enabled at the end of the third question, which shows a final screen with the relevant information of the test: ID (identifier), subject, hits/questions ratio, initial and final question number, time, etc., as well as a "security seal" which is an image on which this same information is printed, so that the possible edition of the same screen is difficult. This is the section through which teaching control can be carried out.

The application has a help module for clearing (interactive form), a unit conversion module using the Unit Factor method, and a Scientific Notation module.

Matters included in the version:
Mathematics I
Mathematics II
Mathematics III
Mathematics IV
Physics I
Physics II
Selected Topics in Physics I
Selected Topics in Physics II
Diferential calculus
Integral calculus

Program features:
*There are no attempt restrictions.
*Does not require internet or additional permissions.
*The identification of the user is given by means of an identifier (ID), which can be between 1 and 150000
*The questions and topics by subject are based on the Study Programs of the Ministry of Public Education, in Mexico (and can be consulted on its website), so they could vary with respect to others.

Complete examples of the exercises by subject, as well as the desktop version, can be found on the developer's website.