Instock: Shopping is your personalized shopping assistant for iPhone users. This app allows you to stay up-to-date with real-time notifications on product availability. Whether you're into sneakers, electronics, or home goods, Instock aims to support your purchases by providing an extensive product catalog that is regularly updated to cater to user demands and market trends.

With Instock, you can create a customized product feed to track the items you desire and never miss a drop or restock. The app also offers a discounts-only feed to help you find great deals easily. Moreover, you can enjoy faster checkouts with direct add-to-cart links and autofill features, making your shopping experience more efficient.