Yes, they apply to your flight. We notify you of new flight information as soon as we receive it from the airline.
For example, if we receive a notification three days before your flight that the gate has changed, we will notify you.
Such updates, if they occur 24+ hours before your flight, will come in silent mode (just appearing on the app screen).
If you doubt that the alerts apply to your flight, let us know via the feedback option in the app settings.