Socratic is an application that has been around for some time and SAPO TEK has even mentioned it. But at the time I still didn't have the strength of Google for a while. The basic concept remains the same: explain certain subjects, helping with homework.
Just ask a question or pose a problem, using text, voice or image, and Google Artificial Intelligence promises to do the job and give you the right answer.
Very easy and intuitive to use, the application features online resources to explain and help you understand a certain part of the subject or answer a direct question in the best way, sometimes with step-by-step tutorials.
Algebra, Geometry, Trigonometry, Biology, Chemistry, Physics, History and Literature are some of the subjects in which Socratic can help.
Socratic by Google is free, with no in-app purchases, and is available for Android and iOS devices.