Lexi Citizenship

CitizenDev

Contains adsIn-app purchases

About this app

Get ready for your U.S. citizenship interview with a study plan that actually adapts to YOU.

Lexi Citizenship is the most complete prep app for the USCIS naturalization test. Learn all 128 official civics questions, practice the full N-400 interview, sharpen your reading and writing — and compete with other future citizens along the way.

★ WHAT YOU'LL PRACTICE ★

• 128 Civics Questions — The complete USCIS list, with audio, explanations, and adaptive flashcards that focus on what you struggle with.

• N-400 Personal Interview — Over 200 questions an officer can ask you, organized by section. Practice answering, get AI-powered feedback on grammar, vocabulary, and content.

• Mock Interview Mode — A simulated USCIS officer speaks to you out loud, asks follow-up questions, and grades your responses using AI. Feels like the real thing.

• Reading & Writing — Practice the official USCIS reading and writing vocabulary. Speak the sentences out loud and get instant feedback on pronunciation.

• Personalized to Your District — Tell Lexi where you live and we'll automatically teach you your real Senators, Representative, Governor, and State capital — using up-to-date government data.

★ WHY LEXI WORKS ★

• Adaptive Learning — Lexi tracks your mastery of every question and focuses your next session on what you'll forget first.

• Daily Streaks & XP — Build a habit. Lose a streak? Use a streak saver to recover it.

• Live PvP Competition — Race against another future citizen in real time on civics questions. Climb the monthly leaderboard.

• Real-Time AI Feedback — Powered by Google Gemini, your written and spoken answers get reviewed for tone, grammar, and completeness — not just right/wrong.

★ BILINGUAL ★

The entire app works in English and Spanish. Switch anytime from your profile.

★ FREE TO USE ★

The core civics study, N-400 question bank, reading & writing exercises, and one mock interview per month are completely free. Lexi Premium unlocks unlimited mock interviews, ad-free experience, and rewarded streak savers.

★ PRIVACY ★

Lexi doesn't store your voice or share your data with advertisers beyond what's required to show ads. Read our policy: https://lexicitizen-513f5.web.app/privacy

★ WHO IT'S FOR ★

• Permanent residents preparing for the N-400 interview
• Anyone studying for the USCIS naturalization test
• Spanish-speaking applicants who want bilingual prep
• People who want a structured study plan, not random YouTube videos

Start your study streak today. Pass the test. Become a U.S. citizen.

Ratings and reviews

amazing app!!! compete feature is incredible

excelente aplicación para estudiar para el examen de ciudadanía

What’s new

🇭🇹 Lexi now speaks Haitian Creole! Study for your citizenship test and N-400 interview fully in Kreyòl Ayisyen.

• New: full app experience in Haitian Creole
• Richer N-400 prep: key vocabulary, common mistakes, and officer follow-up questions for all 118 interview questions
• Simpler, faster onboarding
• Bug fixes and performance improvements