Language learning, in its digital form, means using apps and AI tools to learn a new language, or to read and write better in one. It covers two kinds of product. The first is apps that teach a language through short daily lessons on a phone. The second is writing and reading tools: grammar checkers, paraphrasing tools and text-to-speech apps.
Spoken English classes are advertised in almost every Indian town, because many people see good English as the way to a better job. Learning a language, and writing well in one, is one of the largest education markets sold directly to people rather than to schools.
Here is a typical case. A second-year BCom student in Bhubaneswar wants to be confident in spoken English before campus placements. Every morning, on the bus to college, she spends five minutes on a language learning app. Today's lesson asks her to answer a question aloud. The app scores her pronunciation and asks her to repeat one word. Her streak, the count of days in a row that she has practised, reaches 48.
In the evening, she writes a 1,000-word assignment on India's goods and services tax. Before submitting it, she pastes it into a grammar checker and paraphrasing tool. It underlines 23 errors, such as a missing "the" or a wrong tense, and suggests a clearer way to write two long sentences. She accepts most of the fixes. She rewrites one suggestion herself, because it changed her meaning.
At night, she has a 40-page PDF to read for the next day's class. She opens it in a text-to-speech app and listens at 1.5 times normal speed while she follows the text on the screen.
How do these products earn? Most of them are freemium. Anyone can use a basic version for free, often with advertisements. A small share of users pay a monthly or yearly subscription to remove the advertisements and unlock more. Because only a few users pay, the apps need very many users. So they use game-like features, such as points and streaks, to bring users back every day.
Why does AI change this market more than any other part of education? A large language model translates, corrects grammar, rewrites sentences and holds a conversation, in almost any language. These are exactly the jobs these products were built to do. So a free AI chatbot now does much of what a paid writing tool used to do. The language apps are responding by becoming AI tutors: a learner can practise a conversation with the AI at any hour, at her own level. Their lessons also use adaptive learning: the app picks the next exercise from the learner's last answers.