Finding a product worth selling usually means browsing dozens of stores and marketplaces manually to spot what's selling well. A product research extension surfaces those signals faster, showing which products a store is pushing, what platform it runs on and details that would otherwise take much longer to gather by hand.
What product research extensions look for
These extensions typically surface signals like a store's bestselling items, recently added products, review counts or badges, and the platform and apps a store uses. Some focus on Shopify stores specifically, while others work across marketplaces or track ad libraries for products being promoted.
Koala Inspector vs PPSpy for product research
Koala Inspector inspects a Shopify store's theme, installed apps and bestsellers, which is useful for understanding a store's overall setup. PPSpy focuses more directly on spying on products and stores for dropshippers, surfacing product-level detail across multiple stores rather than one store's structure.
Combining product research with a tech stack check
Once you've found a promising product or store, a technology detector extension can confirm the platform and apps involved, which helps you understand how the store is built before deciding whether to source a similar product or build a comparable store yourself.