Windows Store App -Application Bar

XAML

<Page.BottomAppBar>
    <AppBar x:Name="bottomAppBar" Padding="10,0,10,0">
        <Grid>
            <StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
                <Button Style="{StaticResource EditAppBarButtonStyle}" Click="Button_Click"/>
                <Button Style="{StaticResource RemoveAppBarButtonStyle}" Click="Button_Click"/>
                <Button Style="{StaticResource AddAppBarButtonStyle}" Click="Button_Click"/>
            </StackPanel>
            <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
                <Button Style="{StaticResource RefreshAppBarButtonStyle}" Click="Button_Click"/>
                <Button Style="{StaticResource HelpAppBarButtonStyle}" Click="Button_Click"/>
            </StackPanel>
        </Grid>
    </AppBar>
</Page.BottomAppBar>

App bar (Windows only)

A toolbar for displaying application-specific commands.