What is Breni?

Breni is an AI learning app that turns any topic, PDF, web page or YouTube video into a course of short, interactive lessons. Think of it as Duolingo for anything: each lesson takes about three minutes, and instead of reading walls of text, you answer, drag, match and write your way through the ideas.

My co-founder and I kept reading, watching and highlighting things, only to forget almost all of it a week later. We built Breni so learning any subject could feel as quick and habit-forming as a language app, and actually stick.

How it works

1. Pick what you want to learn. Type a topic, upload a PDF or lecture slides, or paste a website or YouTube link.

2. Get a personalised course. Breni plans a full course around your goal, level and language, then generates each lesson when you open it. The first lesson is ready in about 20 seconds.

3. Learn by doing. Every idea starts with a question before the explanation, and every lesson asks you to explain something in your own words.

4. Remember it. Questions you miss come back later through spaced repetition, so you review exactly what you’re about to forget.

Features

• 11 interactive activity types: fill the gap, match, put in order, build it, sort, explain in your own words and more

• Visual diagrams and interactive simulations instead of plain text

• Story-based units with recurring characters that make ideas easier to remember

• Streaks, XP, hearts and weekly leagues to make learning a daily habit

• Duels: challenge friends to a quiz on any topic, even from your own notes

• Live quiz rooms for classes and study groups, joined with a 4-character code

• Paths: guided course sequences from Breni, schools and creators, with a certificate when you finish

• School leaderboards where students represent their school

• Multilingual learning in English, Spanish, French, Mandarin and more

Who it’s for

• Students turning lecture notes and textbooks into quick study sessions before exams

• Teachers running live quizzes and sharing private Paths with their class

• Professionals learning new skills like coding, digital marketing or investing

• Curious learners who want to understand something new in a few minutes a day

Built with learning science

Breni uses proven techniques from cognitive science: retrieval practice, pre-testing, spaced repetition and self-explanation. The difficulty is a side effect of what makes learning effective, not the point. It still feels like a game.

Try it

Breni is free on iOS, Android and the web. Over 20,000 learners in 20+ countries are already using it to make learning a daily habit, together.