Prepare for your US citizenship test with AI-powered practice for civics, reading, writing, and N-400 interview. Features spaced repetition, mock interviews, and a readiness score. Available in English and Spanish.
1.0.3
July 25, 2026
NEW: Haitian Creole support! Study for your citizenship test entirely in Kreyòl Ayisyen — civics, N-400 interview practice, and all lessons now fully translated. • Simpler onboarding: choose your language and exam in fewer steps • Compete: see last month's champion on the ranking screen • Better daily reminders so you never lose your streak • Bug fixes and performance improvements
MoreUnlimited citizenship practice, mock interviews.
Lexi offers five exercise types per civics question: multiple choice, fill in the blank, match columns, written, and oral. It also utilizes spaced repetition to help users retain information effectively.
Lexi simulates the full N-400 interview by acting as the officer, asking every question on the form, and listening to your spoken answers. It provides USCIS-style feedback, including follow-up questions and ceremony phase practice.
Yes, Lexi assists with reading and writing practice by reading sentences for you to read back and grading your written answers. It reviews your performance to help improve these skills.
You can input your exam date, and Lexi will create a day-by-day plan. It provides an "Are you ready?" score that updates with each study session, giving you a clear indication of your preparedness.
Yes, Lexi contains advertisements. Users can remove ads and unlock unlimited mock interviews by subscribing to Lexi Premium.
Lexi Premium offers monthly and yearly subscription plans. The monthly plan costs $5.99 per month, and the yearly plan is $39.99 per year. Subscriptions auto-renew unless canceled at least 24 hours prior to the current period's end.
Lexi is available on iPhone, iPad, and iPod. The app is designed to be compatible with these Apple devices.
The latest version of Lexi was released on June 28, 2026, indicating recent activity. While specific update frequency isn't detailed, this suggests the app is actively maintained.