Keepa
This allows at-a-glance insight into the best time to purchase a product. This chart alone has saved me from purchasing products for tens of percentages above their frequent lowest prices, and that feels good. When triggered, you can have these price notifications sent to your email, Facebook, Telegram, desktop notifications, or even an RSS feed.
CamelCamelCamel
CamelCamelCamel offers browser extensions to users of Firefox and Chrome, and its extension works almost identically to Keepa’s. Choosing CamelCamelCamel over Keepa is a simple matter of if you require the more polished website features that Keepa provides, or if you prefer one’s charts over the other. Both work very similarly and well.
SlickDeals
There are pros and cons to this method of deal curation, but SlickDeals users have become masters of their craft over the years. SlickDeals was first to catch the $13,000 camera being sold for just $90 (an obvious price mistake) during Prime Day 2019, for example. SlickDeals also has an official browser extension, but it functions more like Honey rather than Keepa or CamelCamelCamel. It’s more of a coupon tracker than a price tracker. One advantage SlickDeals does have over the other two trackers on this list, though, is an awesome app for both iOS and Android.
