Khan Academy

Khan Academy is a mobile client of a popular educational online service, which contains a huge collection of knowledge in various disciplines and subjects. Algebra and geometry, physics and chemistry, astronomy and geography, computer science and history, health and economics – more than four thousand micro-courses in different areas and degrees of complexity. A schoolboy or a university professor – everyone will find material based on the goals and possibilities, which is presented in text, graphic or video format, as well as supplemented with tasks to test the acquired knowledge.

To use the Khan Academy application, you must first register on the site or through the interface of the program itself, after which the main screen opens before the user, where a large number of thematic sections are concentrated. The use of the application is provided only in portrait mode, since the bulk of the lessons are accompanied by video material, supplemented at the bottom with valuable textual information. By the way, you can download the video in order to watch it in detail offline in the future.

There are not the slightest complaints about the quality of information provided by the Khan Academy service – no “water”, everything is stated clearly, briefly, but succinctly. The interface and content of the application is currently available only in English, the material is translated into other languages ​​by volunteers, but, unfortunately, this process is too slow. But if this is not an obstacle for you, then in the “face” of this application you will find an excellent assistant for self-education, competently presenting material and not requiring any financial investments for this.