Difference in ingredients: Seafood soy sauce is based on soy sauce with seafood extracts or seasonings added to give it a seafood flavor, while Aji Fresh is a condiment with a freshness enhancer as the main ingredient, which may contain a variety of freshness extracts.

Differences in taste: Seafood soy sauce tastes mainly of the combination of the saltiness of soy sauce and the freshness of seafood, which gives it a distinctive seafood flavor, while Aji Fresh is mainly of freshness enhancers, which emphasizes the intensity of the freshness and texture.