What is the difference? Is one better than the other? From the description, QD+ is more like spray and wipe and QW+ is more like spray wax.
QD+ is a spray on maintenance product with little cleaning ability but great shine, slickness and a little protection and can be used on a wet vehicle.
QW+ is not usually used as a spray and does not come with a sprayer. It has a lot of cleaning ability and protection and is most often used as a one step cleaner wax or maintenance.
Which one is better ... they both have different uses and very loyal followers ... one observation from my side is that Internationally, QW+ is a very popular product, where QD+ sells better here in the USA ... go figure???