Wordpress - Hide prices and checkout functionality in woocommerce

luckily woocommerce has many hooks, this removes prices and buttons:

remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10 );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
remove_action( 'woocommerce_after_shop_loop_item_title', 'woocommerce_template_loop_price', 10 );

you can dig into content-product.php and content-single-product.php if you need to remove more stuff.

I can imagine there's more than just the prices/buttons you want to hide/remove though (like pages/functions), this tutorial gives you some pointers

Extending the above code (thanks Ewout), the following code will get rid of all prices and 'add to cart' buttons on all woocommerce products, as well as provide an explanation as to why. I needed the code for a website that offers direct selling products and to comply with their rules, I cannot show prices to the general public.

Add the filter to your theme's functions.php file.

    add_filter('woocommerce_get_price_html','members_only_price');

    function members_only_price($price){

if(is_user_logged_in() ){
    return $price;
}

else {
    remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
    remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10 );
    remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
    remove_action( 'woocommerce_after_shop_loop_item_title', 'woocommerce_template_loop_price', 10 );
    return 'Only <a href="' .get_permalink(woocommerce_get_page_id('myaccount')). '">Registered Users</a> are able to view pricing.';
      }

}