The countdown timer, often referred to as the countdown clock, is now available and you can display it on your product pages to heighten the sense of urgency and encourage customers to complete a purchase before it expires. Key Attributes of Inventory Countdown App Easy to set up in less than 30 seconds, best free app. Select any product page to enable or disable the countdown widget. The look and feel of the default panel can be completely changed. Create a sense of urgency and scarcity, as well as social proof.