Transform browsers into buyers with group purchasing power. Create time-limited deals where discounts increase as more customers commit to buy. Set tiered pricing (e.g., 5 buyers=$99, 10=$79, 15=$59), choose your target, and connect your discount code. Customers see real-time progress, share with friends, and get notified when tiers unlock. Perfect for product launches, clearing inventory, and creating viral momentum. Build email lists while driving conversions through social proof and FOMO.