I have one app that might be what you want. Have you known about Beeketing platform and Sale Nuturing App in Beeketing platform yet?
For each time customers view a product, or add a product to cart, but haven’t bought it yet, Beeketing will automatically send an email providing more information about that product and persuading them to own it sooner.
After 2 days, if your customers still hesitate to buy, we will send them another email to remind them, and after another 2 days, if customers still don’t buy your products, we’d continue to send them one last email to make sure they don’t forget your awesome deals.