RegKeeper is a straightforward, inexpensive e-sales tracking software application packed with handy features like an overstuffed sandwich. RegKeeper tracks sales generated by own e-store or third-party resellers, comes with affiliate support, chargebacks and refunds black list, e-mail processing/filtering, order import, rich reporting options, sales history. While it can be used to track any sales, this product is excellent for software e-shops.