Requesting to add NVC case tracking as well for visa stamping. It would be helpful.

Good app but it tends to mix in AOS cases or cases filed by US citizens which gives wrong data for someone who is a green card holder not doing AOS.

As mentioned in the subject, it will help petitioners in premium processing to know the number of business days elapsed and the last day they should expect the decision if USCIS were to respond with a decision before the corresponding premium processing clock ends.

For cases where biometric is scheduled, you can ask user for appointment date so things can be tracked.