CartHook Post Purchase Upsell

Years ago, I heard a marketing guru say, "The best time to ask a customer for more money is right after they've just given you money." CartHook contributes nearly $10K/month worth of additional revenue in upsells -- we generally use a simple message of, "would you like an extra bottle for X% off?" The app is extremely easy to set up and use, and CartHook tech support is very helpful and quick to respond. Highly recommended adding this app to your Shopify!! :)