Flawlessly integrated into Shopify checkout, Spark lets customers catch irresistible upsell and downsell offers the moment they complete a purchase - no re-entry of payment details required. One click is all it takes.Build multi-step funnels where every response leads to the perfect next offer. Easily personalize offers with 20+ targeting rules - product ordered, cart value, customer tags, purchase history, and time of day. Customize layouts, colors, and copy to match your brand flawlessly.