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Best N400 Apps

202+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated June 2026

The best n400 apps on iPhone average 4.8★ across 202+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for N400

US Citizenship Test 2026 Plus#1

US Citizenship Test 2026 Plus by Creator Factory LLC

USCIS Civics Test Study Guide
Editor's Choice
📚 Education
4.8😊(104K ratings)
FreeAdsIn-App Purchases
US Citizenship Test 2026 Plus screenshot 1
US Citizenship Test 2026 Plus screenshot 2
US Citizenship Test 2026 Plus screenshot 3
US Citizenship Test 2026 Plus screenshot 4
US Citizenship Test 2026 Plus screenshot 5
US Citizenship Test 2026 Plus screenshot 6

Prepare for the US Citizenship Civics Test with flashcards, practice tests, and audio for all 100 official questions. Includes state-specific information and real-time updates on government officials. Aimed at helping applicants pass their naturalization interview.

What We Love

  • 👍 Helpful app for studying citizenship test
  • 🚀 Efficient flashcard and practice test features
  • 💡 Customizable for user's state and representatives
  • 🎉 Helped users pass the citizenship test

Room to Improve

  • 🐛 Audio playback issues for some users
  • 🔍 Occasional inaccuracies in question/answer content
  • 💰 Complaints about excessive ads
Citizen Now: US Citizenship#2

Citizen Now: US Citizenship by Liontude LLC

US Citizenship Test 2026
Strong Contender
📚 Education
4.9😊(64K ratings)
FreeAdsIn-App Purchases
Citizen Now: US Citizenship screenshot 1
Citizen Now: US Citizenship screenshot 2
Citizen Now: US Citizenship screenshot 3
Citizen Now: US Citizenship screenshot 4
Citizen Now: US Citizenship screenshot 5
Citizen Now: US Citizenship screenshot 6

Prepare for the US naturalization interview with this comprehensive study tool. It offers AI-powered practice, official questions with real audio, and localized information to help you master the civics test and N-400 application.

What We Love

  • 🚀 Helpful app
  • 👍 Easy to use
  • 🙌 Excellent study tool
  • 🎉 Helped pass citizenship test

Room to Improve

  • 🔍 Outdated information
  • 📢 Too many ads
  • 🔀 Inconsistent question answers
U.S. Citizenship Test '26#3

U.S. Citizenship Test '26 by Purple Buttons LLC

Study for the Citizenship Test
Worth Considering
📚 Education
4.8😊(11K ratings)
FreeAdsIn-App Purchases
U.S. Citizenship Test '26 screenshot 1
U.S. Citizenship Test '26 screenshot 2
U.S. Citizenship Test '26 screenshot 3
U.S. Citizenship Test '26 screenshot 4

Prepare for the USCIS Citizenship test with practice questions and flashcards. Study US History and Government, updated with the latest official questions and answers. Take practice tests to gauge your readiness for the interview.

What We Love

  • 🚀 Very well done
  • 🚀 Excellent app
  • 🚀 Helpful at the study time
  • 🚀 Great practice

Room to Improve

  • 🐛 Unable to see or use answer 4
  • 🐛 Invisible purchase buttons
  • 🐛 Problems with language

More N400 apps to explore

4
US Citizenship Test 2026
US Citizenship Test 2026
US Citizenship Test 2026
Study app for US Citizenship
Free

Prepare for the US citizenship interview with this study app. It offers flashcards, audio playback, and simulated interview modes to help you learn and memorize questions and answers for the official test.

Flashcards modeStarred flashcards for reviewAutomatic audio playback
📚 Education
(18K)
free with in-app purchases
5
N400 US Citizenship Test
N400 US Citizenship Test
N400 US Citizenship Test
by Tyna Tech LLC
Free

Practice for the US citizenship test with voice recognition and instant feedback. Simulate real test conditions or study at your own pace with adaptive learning and progress tracking. Covers all 100 official civics questions.

Voice-powered learning with speech recognitionReal test simulation with timed responsesSmart practice mode with unlimited time
📚 Education
(1)
free with in-app purchases
6
US Civics Test 2026
US Civics Test 2026
US Civics Test 2026
400+ Audio Questions and Guide
Free

Prepare for your US citizenship test with over 400 audio questions and an official study guide. Master US history, government, and values through interactive lessons, quizzes, and flashcards. Track your progress and study offline anytime, anywhere.

400+ audio questionsOfficial USCIS study guide integrationInteractive lessons and quizzes
🔍 Reference
(1.3K)
free with in-app purchases
7
New USCitizenship Test
New USCitizenship Test
New USCitizenship Test
by Hong Nguyen
Free

Prepare for the U.S. Citizenship test with this comprehensive guide. It covers the 100 Civics questions and answers, English reading and writing practice, and resources for the naturalization process. Master all components of the test to confidently achieve U.S. citizenship.

100 Civics Questions and AnswersAudio files for Civics questionsEnglish Reading Practice
📚 Education
(88)
free
8
Citizenry: US Citizenship
Citizenry: US Citizenship
Citizenry: US Citizenship
USCIS Civics Test Study Tools
Free

Prepare for the US citizenship civics test with comprehensive study tools. Features include unlimited mock interviews, flashcards, quizzes, and audiobooks for both the 2008 and 2025 versions of the test. Supports multiple languages and offers a personalized study experience.

Unlimited mock video interviewsFlashcards with swipe functionalityZIP code lookup for local representatives
📚 Education
(12K)
freemium
9
US Citizenship Test App 2024
US Citizenship Test App 2024
US Citizenship Test App 2024
USCIS Civics Test Study Guide
Free

Prepare for the US Citizenship Test with flashcards, practice tests, and audio for all 100 civics questions. Includes state-specific questions to help you pass your interview and achieve US citizenship.

100 civics questions and answersAudio for all questions and answersState-specific government questions
📚 Education
(3.9K)
free with in-app purchases
10
USCIS: Civics Test Study Tools
USCIS: Civics Test Study Tools
USCIS: Civics Test Study Tools
by USCIS Department of Homeland Security
Free

Prepare for the U.S. naturalization civics test with official study tools. Practice tests, a question challenge game, and audio support in English and Spanish are available. Access all 100 official questions and answers to help you pass the oral exam.

Official 100 civics questions and answersPractice civics testsQuestion Challenge game
📚 Education
(278)
free
11
US Citizenship Test - N400Pass
US Citizenship Test - N400Pass
US Citizenship Test - N400Pass
Civics & Interview Prep
Free
📚 Education
(1)
12
Citizen Test Prep 2026
Citizen Test Prep 2026
Citizen Test Prep 2026
USA Citizenship Prep & Study
Free

Prepare for your U.S. citizenship exam with a personalized study plan. This app offers practice questions, tracks your progress, and helps you master topics like American Government and History to boost your confidence for the oral interview.

Personalized study planPractice with 1000+ questionsTrack strengths and weaknesses
📚 Education
(3.5K)
free with in-app purchases
13
US Citizenship Test - 2026
US Citizenship Test - 2026
US Citizenship Test - 2026
USCIS Civics Test Study Guide
Free

Prepare for the U.S. Citizenship Test with official civics questions, interview practice, and English proficiency exercises. Track your USCIS case status and access state-specific information to confidently navigate the naturalization process.

Official civics test questionsState representative informationUSCIS case status tracker
📚 Education
(1.4K)
free with in-app purchases
14
N-400 Interview Prep Coach
N-400 Interview Prep Coach
N-400 Interview Prep Coach
USCIS Citizenship Practice
Free
📚 Education
(0)
15
US Citizenship Test 2026 Plus.
US Citizenship Test 2026 Plus.
US Citizenship Test 2026 Plus.
US Citizenship Test 2025
Free
$19.99 | 100% OFF

Prepare for your U.S. citizenship interview with realistic mock interviews, audio practice, and flashcards. Covers both the 2008 and 2025 civics tests, including state-specific information. Practice answering questions out loud to build confidence for your naturalization appointment.

Mock interview modeAudio for questions and answersState-specific civics information
📚 Education
(5.3K)
free with in-app purchases
16
US Citizenship Test - Civics
US Citizenship Test - Civics
US Citizenship Test - Civics
USCIS Naturalization Exam Prep
Free

Prepare for the US Citizenship Test with a comprehensive practice system. Access over 99 current questions, simulate exam conditions, and track your progress to ensure you're ready for the naturalization interview.

99+ current practice questionsSimulated exam conditionsRandomized questions and answers
📚 Education
(247)
free with in-app purchases
17
Lawfully Case Tracker
Lawfully Case Tracker
Lawfully Case Tracker
Track USCIS, NVC & EOIR case
Free

Track your USCIS, NVC, and EOIR immigration case status with detailed analytics and automatic updates. Prepare for interviews with mock sessions and get personalized case predictions based on big data. Access visa bulletins and case processing times to understand your progress.

USCIS, NVC, EOIR case status trackingAutomatic status updates and push notificationsVisa bulletin and processing time information
🔧 Utilities
(164K)
free with in-app purchases
18
U.S. Civics Test with Audio
U.S. Civics Test with Audio
U.S. Civics Test with Audio
Civics Practice Test
Free

Prepare for the U.S. naturalization interview with this study tool. It provides all 100 official civics questions and answers, including audio for both. Practice to confidently pass your civics test.

100 official USCIS civics questionsAudio for questions and answersPractice for naturalization interview
🔍 Reference
(157)
free with in-app purchases
19
US Citizenship Test: N400 Prep
US Citizenship Test: N400 Prep
US Citizenship Test: N400 Prep
US Citizenship Test Prep
Free

Prepare for your U.S. citizenship interview with comprehensive civics test content for both the 2025 and 2008 versions. The app offers focused study sessions, tracks missed questions, and provides local answer customization. It supports multiple languages and works offline.

Official 2025 and 2008 civics test contentAuto-filled local answers by ZIP codeStudy in English, Spanish, Chinese, Vietnamese, Korean
📚 Education
(4)
free with in-app purchases
20
US Citizenship Study Cards
US Citizenship Study Cards
US Citizenship Study Cards
by Joel Huber
Free

Prepare for the US citizenship test with flashcards covering the 100 official USCIS questions. Practice vocabulary, listening, and writing skills essential for the interview. Study anywhere with interactive card flipping and swipe gestures.

100 official USCIS citizenship test questionsN-400 vocabulary studyListening and writing practice
📚 Education
(2)
free

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