Terapeak

eBay signed an agreement to acquire Terapeak in December 2017. Terapeak was a Toronto-based company that used supply, demand and pricing data to help sellers decide what to sell and at what price. eBay said it would add Terapeak's features, such as sales history and price guidance, to Seller Hub. The standalone product was replaced by research tools inside Seller Hub.

Yes, the main tool is. From April 2021 eBay made Terapeak Product Research free for all Seller Hub sellers, so you no longer need a standalone or Store subscription to use it. Terapeak Sourcing Insights is different: it still requires a qualifying eBay Store subscription, which eBay's help page says is a Basic Store or higher.

Open eBay Seller Hub and go to the Research tab, where Terapeak now appears as Product Research. You can also go directly to ebay.com/sh/research. Sourcing Insights is in the same research area for sellers with a Basic Store or higher. eBay's help page says the research tools are also available in its mobile apps.

Sourcing Insights helps sellers plan what to stock by showing real sales data for whole categories and pointing out areas of opportunity. eBay makes it available to business sellers with a Basic Store subscription or above, at no extra charge beyond the Store fee. Sellers without a qualifying Store can still use Product Research for individual items.

eBay's help page says Product Research and Sourcing Insights both give access to the last three years of eBay sales data for millions of items. This is longer than the sold listings filter in regular eBay search, which shows recent sales only. Results show actual sold prices rather than asking prices, which helps when setting a price.