WooCommerce already comes with everything you need to sell physical and digital products. Want to let your customers know how popular a product has been among your customers? Sales Count Manager for WooCommerce is just the plugin for the job. It lets you show total number of items sold. It also has social share buttons for your products.
The pro version of this plugin lets you enable the sales counter for categories and tags. You can also define a custom number sold items for every product. It has a convenient shortcode that lets you display a sales counter anywhere. A color picker is available to customize text & background color.