Add Conditional statement to php snippit

Hello,

I added a sticky buttons plugin to my site and it said to:
Place <?php if(function_exists('wordpress_Sticky_btns')) {wordpress_Sticky_btns();}?> in your templates

So I added it to Inside Content Container and it works, but is there a way to add to this so it only outputs on Home page and Singles page

I tried this but no luck;
<?php if(is_home() && is_single() && function_exists('wordpress_Sticky_btns')) {wordpress_Sticky_btns();}?>

I tried searching on this but could not get it

Thanks