The Best Shopping App for Fashion Jewellery and Accessories. The Jumkey App Advantage. 1. 25, 000+ new designs added every month. 2. 100% Genuine Products - all our products are handpicked & Quality Checked. 3. Free & Easy Return policy for customers. 4. Shop & Try + big discounts and offers inside the Jumkey Mobile App. 5. Shop the latest Trends.