Scrapy is a price tracker for South African stores. It features price history charts, price watches, and price drop alerts.
I have been using this extension to track the price history of Takealot products. Its so useful to see whether a "sale" on an item is actually any cheaper. I see it supports more online stores such as Wootware, Evetech, etc.
Just sharing as I find this immensely useful and hope it could help others, particularly as we approach Black Friday. Please note I have no affiliation with the developer.