LEX: Learn English Grammar

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About this app

Master English Grammar Fast & Speak Confidently with LEX!

Looking to speak English fluently and master English grammar effortlessly? LEX: Learn English Grammar is your ultimate offline-first language learning companion designed to take you from beginner basics to confident conversation!

Built on a proven, time-tested 3x3 verb conjugation grid (Past, Present, Future × Affirmative, Negative, Interrogative), LEX trains your brain to form correct English sentences automatically without overthinking grammar rules.

Key Features & Highlights:

🎯 PROVEN 3x3 CONJUGATION METHODOLOGY
Unlock the secret to English verb tenses! Learn how to combine helping verbs (do, did, will) and pronouns to construct positive statements, negative sentences, and questions effortlessly.

📚 16 STRUCTURED STEP-BY-STEP LESSONS
Progress through 16 comprehensive grammar lessons. Master essential topics including Simple Tenses, Modal Verbs, Prepositions, Phrasal Verbs, Irregular Verbs, and Everyday Vocabulary.

🗣️ SPEAKING & PRONUNCIATION PRACTICE
Improve your English accent and speaking confidence! Practice speaking answers aloud with real-time speech evaluation and high-quality Text-to-Speech audio pronunciation.

🎮 INTERACTIVE EXERCISES & GAMES
Solidify your knowledge with engaging interactive training modes:
• Sentence Builder & Word Order Puzzles
• Multiple-Choice & Fill-in-the-Blank Quizzes
• Vocabulary Pair Matching & Word Search Games
• Typing Drills & Spelled Answer Exercises

🎴 SMART VOCABULARY BUILDER
Expand your English vocabulary with built-in flashcards, phonetic transcriptions, starred word lists, and review modes tailored to reinforce memory retention.

📶 100% OFFLINE-FIRST LEARNING
No internet? No problem! Study English grammar tenses, practice vocabulary, and review exercises anywhere, anytime—on the plane, commuting, or offline.

💬 GLOBAL LEARNER COMMUNITY
Join discussion boards under every lesson to ask questions, read community tips, and interact with fellow English learners worldwide.

🌐 MULTILINGUAL PROMPTS & INTERFACE
Learn English in your native language! Supports translated lesson explanations, vocabulary prompts, and UI support for English, Spanish, Russian, Portuguese, Hindi, Indonesian, Armenian, and Vietnamese.

🎨 BEAUTIFUL CLASSROOM THEMES
Enjoy a distraction-free learning experience with customizable Chalkboard Slate (Dark) and Sand (Light) visual themes crafted for day and night study sessions.

Start your English language journey today. Download LEX: Learn English Grammar and start speaking English with confidence!
Master English grammar, verb tenses & vocabulary with 16 offline lessons!
Updated on
Sep 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Financial info, App activity, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Initial production release of LEX: Learn English Grammar.