Just make a check, if you have any applications available, and if so – echo them. Here is an example:
add_action( 'woocommerce_after_shop_loop_item_title', 'display_applications_attribute', 5 );
function display_applications_attribute() {
global $product;
$applications = $product->get_attribute('pa_applications');
if ( $applications ) {
printf('<span class="attribute-applications">Applications: %1$s</span>', $applications );
}
}