N400Tracker: Green Card
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About this app
N400Tracker turns the two things that decide your naturalization timeline, time and travel, into one clear answer: when can I file?
FILING DATE COUNTDOWN
Enter your Permanent Resident date and choose the 5-year rule or the 3-year marriage rule. The app works out your earliest filing date, including the 90-day early filing window, and counts down to it.
PHYSICAL PRESENCE
Every trip you log is subtracted from your days inside the United States. You see the days you have, the days you still need, and exactly how much margin is left.
CONTINUOUS RESIDENCE WARNINGS
A trip of 180 days or more can break continuous residence. Trips approaching that line are flagged before they become a problem, not after.
TRIP PLANNER
Thinking about a long trip? Enter a departure date and a length and see the effect on your record before you book anything.
CIVICS TEST PRACTICE
Practice the official questions using the same stopping rules as the real interview. The app selects the 2008 or 2025 test automatically from your N-400 filing date. Study mode lets you browse the full official catalog at your own pace, with no score and no time limit.
INTERVIEW CHECKLIST
The documents to bring, grouped the way you will actually use them.
SIX LANGUAGES
English, Español, Português, Türkçe, हिन्दी and العربية. The civics questions themselves stay in official English, because most applicants take the interview in English.
PRIVACY
There is no account, no sign-up, and no server. Everything you enter stays on your phone. The app collects nothing about you and works completely offline.
PREMIUM
Practice exams, the eligibility calculator, and trip entry are free. A single one-time purchase, not a subscription, unlocks saved practice history, resumable exams, and permanent trip history.
IMPORTANT
N400Tracker is an informational tool. It is not legal advice and it is not affiliated with USCIS or any government agency. Civics answers can change after elections and appointments; verify current answers at uscis.gov/citizenship/testupdates. Confirm your eligibility with USCIS or a licensed immigration attorney.
FILING DATE COUNTDOWN
Enter your Permanent Resident date and choose the 5-year rule or the 3-year marriage rule. The app works out your earliest filing date, including the 90-day early filing window, and counts down to it.
PHYSICAL PRESENCE
Every trip you log is subtracted from your days inside the United States. You see the days you have, the days you still need, and exactly how much margin is left.
CONTINUOUS RESIDENCE WARNINGS
A trip of 180 days or more can break continuous residence. Trips approaching that line are flagged before they become a problem, not after.
TRIP PLANNER
Thinking about a long trip? Enter a departure date and a length and see the effect on your record before you book anything.
CIVICS TEST PRACTICE
Practice the official questions using the same stopping rules as the real interview. The app selects the 2008 or 2025 test automatically from your N-400 filing date. Study mode lets you browse the full official catalog at your own pace, with no score and no time limit.
INTERVIEW CHECKLIST
The documents to bring, grouped the way you will actually use them.
SIX LANGUAGES
English, Español, Português, Türkçe, हिन्दी and العربية. The civics questions themselves stay in official English, because most applicants take the interview in English.
PRIVACY
There is no account, no sign-up, and no server. Everything you enter stays on your phone. The app collects nothing about you and works completely offline.
PREMIUM
Practice exams, the eligibility calculator, and trip entry are free. A single one-time purchase, not a subscription, unlocks saved practice history, resumable exams, and permanent trip history.
IMPORTANT
N400Tracker is an informational tool. It is not legal advice and it is not affiliated with USCIS or any government agency. Civics answers can change after elections and appointments; verify current answers at uscis.gov/citizenship/testupdates. Confirm your eligibility with USCIS or a licensed immigration attorney.
Know exactly when you can file your N-400. Days abroad, presence, civics prep.
Updated on
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.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
Day counts, the filing countdown and the trip planner now appear fully in your language, plus performance improvements.
App support
About the developer
AY TASARIM LLC
bilgi@aytasarim.com
3606 Enterprise Ave Ste 200
Naples, FL 34104-3670
United States
+1 561-679-3410
