Educational apps

Duolingo, Inc. is an American educational technology company that produces learning apps and provides language certification. Duolingo offers courses on 42 languages, ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Navajo, and even constructed languages such as Esperanto and Klingon. It also offers courses on music, math, and chess. The learning method incorporates gamification to motivate users with points, rewards and interactive lessons featuring spaced repetition. The app promotes short, daily lessons for consistent, phased practice.

Kahoot! is a Norwegian online game-based learning platform. It has learning games, also known as "kahoots", which are user-generated multiple-choice quizzes that can be accessed via a web browser or the Kahoot! app. It was originally founded in 2006, but gained massive popularity in 2020 during the COVID-19 pandemic.

Memrise is a British language platform that uses spaced repetition of flashcards to increase the rate of learning. It is based in London, UK.

MS Windows application for solving maths problems

Photomath is an educational technology mobile app, owned by Google. It features a computer algebra system with an augmented optical character recognition system, designed for use with a smartphone's camera to scan and recognize mathematical equations; the app then displays step-by-step explanations onscreen.

Preply ( ) is a multinational online language learning platform headquartered in the United States. The company connects learners with tutors for live, one-on-one lessons through its website and mobile app, using a recommendation algorithm to match students and teachers.

language exchange app

American children's television series

gamificated language learning app

Android language-learning app