The Checkout upsell app will help you display recommended products based on customers ordered items.
Display related products: Toggle on/off for display related products, Number of related products to display, You can also customize css of product block. or any customer offer on checkout thank you page. Customised Offers: Either you can add custom text with HTML or you can upload a custom offer image to display on the checkout thank you page. If you choose display text, then you can customize the text color, font style and also apply your own custom CSS.
$5/month