Support

What’s free? To start: 30 Study questions, 2 practice tests, and 3 rounds each of English reading, writing and speaking practice. One one-time unlock opens everything, including AI Interview (the mock interview with the officer). People who used the app before October 2026 keep Study, practice tests and English practice free.

I bought the unlock. How do I use it on another device? Open n400practice.com (or the app), go to Settings, tap “Have a code?”, and enter your code. Each code works on up to 3 devices.

I lost my code. On the website or in the app, tap “Have a code?”, then “Forgot your code?”, and enter the email you used. If you bought in the iPhone or iPad app, tap Settings › Restore purchases on your device.

My code says it’s on 3 devices. Tap “Move it here” and we’ll email a confirmation link. If a school or organization gave you the code, ask them to reset it.

Refunds. Bought on n400practice.com: email us within 120 days of purchase if you didn’t pass your civics test (see the Terms). Bought in the App Store: Apple handles refunds at reportaproblem.apple.com.

“Answer out loud” doesn’t hear me. Check that the microphone is allowed for n400practice.com (or for the app in your device’s Settings), or tap Type to answer instead.

Schools, libraries and nonprofits. Seats for your learners are on n400practice.com (For organizations).

Delete my data. Your progress is stored only on your device (Settings › Reset). For anything you shared or bought, email us and we’ll delete it.