Hi, catalog visibility options is an extension that you can purchase at the woocommerce store.http://www.woothemes.com/products/catalog-visibility-options/
You should check out the userguide before so see if it suits your needs: http://wcdocs.woothemes.com/user-guide/catalog-visibility-options/
However as we discussed above you can also do this with the s2 member plugin that allows you to hide certain pages or posts to certain wp-user roles. You cannot hide just the prices or the certain page elements with s2 as far as i know. you could just make your shop page a memeber only page, where you have to register before you can see the content. hope that helps.