Lexa: Learn English Vocabulary

Want to learn English words effectively and start understanding real speech? Lexa is an English vocabulary builder that combines a scientifically proven spaced repetition system, smart flashcards, and a deep context breakdown of every word.

No matter your level (from A1 to C1), the app helps you expand your English vocabulary at your own pace — without boring cramming or chaotic lists.

SMART FLASHCARDS WITH THE ADVANCED FSRS ALGORITHM
Lexa uses the latest and most advanced version of FSRS. These are not the static flashcards you are used to: the algorithm adapts perfectly to your memory and brings each card back exactly when you are about to forget it. Review less, remember for life!

ENGLISH WITH MOVIES, TV SHOWS, AND BOOKS
Choose a popular movie, TV show, book, or game and master all the vocabulary found there. We have fully analyzed 100% of the vocabulary from popular titles so you can read and watch content in the original without getting distracted by unfamiliar phrases.

LIVE VIDEO EXAMPLES FROM YOUTUBE
Master real spoken English! The app selects short interactive video clips from YouTube for most words in the database. Listen to the natural pronunciation of native speakers, match subtitles, and understand the true context of how words are used.

GRAMMAR MADE SIMPLE
Learn English grammar step by step, from A1 to C1. Each rule is split into short lessons you can finish in a few minutes — no walls of text, no boring lectures.
Practice what you learn with exercises for every rule. Get instant feedback that explains why an answer is correct, so you actually understand the grammar instead of memorizing it.
Spaced repetition brings every rule back right before you forget it.

IN-DEPTH BREAKDOWN OF EVERY WORD
This is much more than a regular translator. Every word in the English dictionary features a detailed breakdown: multiple meanings, transcription, key usage nuances, and clear contextual examples for each individual sense.

YOUR SMART ENGLISH DICTIONARY
- Massive database: more than 35,000 words for any goal, profession, and level — from everyday English to IELTS vocabulary, TOEFL, and SAT.
- Academic lists: all words are organized into thematic categories and authoritative learning collections, including ESL essentials and a word of the day to keep the habit going.
- Progress sync: your learning history is always at hand across all your devices.

WHO LEXA IS FOR
- Learners who want to study English vocabulary with flashcards and spaced repetition instead of endless word lists
- Fans of TV series and movies who want to watch with subtitles and understand every phrase
- Students preparing for IELTS, TOEFL, SAT or school tests, at any level from beginner to advanced
- Anyone who tried other English learning apps and stopped after a week

Lexa is a vocabulary builder, a smart English dictionary and a grammar course in one app.

Effective English vocabulary learning starts here. Download Lexa today and build a rich vocabulary that actually sticks!