What is the difference between acheulian and oldowan tool technology?

Acheulean tool technology is more advanced than Oldowan tool technology, characterized by the presence of handaxes and cleavers. Acheulean tools were more standardized and symmetrical, reflecting more planning, skill, and cognitive abilities compared to the simpler and more basic Oldowan tools. The Acheulean industry appeared later in the archaeological record and was used for a longer period of time.