Being the app already tracks a package's delivery date, and counts days down, i'd like to request an option to increase the refresh frequency of that package's tracking status, so that you may be more quickly notified once delivery has happened.
I typically set updates to once every two hours.. it would be awesome to set that down to 15-30min for packages that are either delivering today, or even better once a package has reached "out for delivery" status with the carrier to further narrow that down. Returning to normal intervals once the package has been delivered, or an exception has been made.