Description: AnkiDroid is a free and open-source flashcard app for Android. It allows users to create decks of flashcards with text, images, audio, and video, and uses spaced repetition to optimize studying. AnkiDroid can help memorize anything from languages, to science material, to trivia.
Type: software
Pricing: Open Source
Description: GNU Octave is an open-source mathematical programming language that is compatible with MATLAB. It can perform numerical computations, data visualization, and other math tasks.
Type: software
Pricing: Open Source