RES·16 · Research & Learning

Duolingo

The popular language app, with AI features such as video calls with a character and explanations of your answers on higher plans.

PricingFreemium

CategoryResearch & Learning

Last checkedNov 2026

What is Duolingo?

Duolingo teaches languages through short daily lessons and games. Its AI features, available on its top plan, include video calls where you practise speaking with a character and explanations of why an answer was right or wrong.

It is excellent for building a habit. To reach fluency, combine it with real conversation and other materials.

Key features

LessonsShort daily exercises.

Video callSpeaking practice with an AI character.

ExplanationsLearn from your mistakes.

Many coursesDozens of languages.

How to get started

Install Duolingo.
Choose a language and set a daily goal.
Try a speaking exercise.

Our take

The most fun way to start and keep up a language.

Best for

Learning a new language
Daily practice habits
Beginners

Strengths

Fun and motivating
Many languages for free

Limits

AI features need the top plan
Not enough alone for fluency

Visit Duolingo ↗

Questions

Is Duolingo free?

Duolingo has a free plan with usage limits. Paid plans unlock more usage and features.

What is Duolingo best for?

Duolingo is best for: Learning a new language, Daily practice habits, and Beginners.

What are the best alternatives to Duolingo?

Popular alternatives in Research & Learning include Perplexity, NotebookLM, Elicit, Consensus, and Scite.

Pricing and features change often. Confirm details on the official Duolingo website.