Does anyone know any apps that allow you to create offers that will appear once costumers clicks “buy now” button? without having to send them to cart page in order to receive a discount offer as I want to keep my cart drawer? so for example, once they click ‘buy now’ button, a offer like " add another shoes with 20% off?" would pop up and they selected yes, it gets added to the cart drawer.
I have a suggestion to you which is a thank you page upsell app where if any clicks on buy now checkout create with customer details automatically.you can try Bundle Upsell & Cross Sell. This is a perfect upsell solution, most importantly it is free to install.