"Mask out-of-stock prices, display custom messages, and hide purchase options."
StockMask is for merchants who don't want to show prices on out-of-stock products. When inventory reaches zero, it automatically replaces the price with a message you choose, such as Price on Request. You can also hide the Add to Cart button so shoppers contact you instead of buying unavailable items. Prices reappear automatically when the product is back in stock. It works on product pages, collections, featured sections, and quick view, on any theme.
Let customers make wishlist of products and request quote
Authorizing customers to see prices and "Add to cart"...
Setup dynamic pricing for products automatically
Change prices automatically based on product sales