CaseTrack
You open the USCIS site, read the same sentence you read yesterday, and close it.
CaseTrack checks it for you and tells you the day it changes. It costs $9.99 one time. There is no subscription and there is no account.
What it does
You put in a receipt number. The app shows the current status and what that status means in ordinary English. "Case Was Received" is not very useful if English is your second language.
It keeps every change with the date it happened. USCIS only shows you today's status, so that history is not available anywhere else once it scrolls past.
If you are waiting on the Visa Bulletin, set your priority date and the app works out how many days the cutoff still has to move. It also shows how far it moved this month, including the months when it moves backwards.
The civics section has all 100 official questions. The mock interview stops after six correct answers, which is what the real interview does.
What it does not do
CaseTrack will not fill in a form for you and will not tell you what to do about your case. I build software; I am not a lawyer, and this app cannot give legal advice about a denial or an RFE.
It does not connect to your USCIS account and never asks for your USCIS password. Case status comes from the official USCIS API. Nothing is scraped from a government website.
Privacy
There is no account and no email address.
Your receipt number does go to my server. It has to: something needs to check it while your phone is in your pocket, and your phone cannot do that on its own. The number is stored under a random ID generated on your device. Your name is not attached, because the app never asks for your name.
Civics progress stays on the phone and is never uploaded.
Full privacy policy · Where the data comes from · Terms
Not affiliated
CaseTrack is an independent app. It is not affiliated with, endorsed by, or connected to USCIS, the Department of Homeland Security, the Department of State, or any government agency.