For example - Is a 500 gm product costing $9.52 better value than an 8 oz product costing $5.00 ? Like4Like will tell you that the 500 gm product is cheaper per unit by around 15%
It will compare Solid items in Kg, Gm, Lbs and Oz. Liquids in Ltr, ml, Gal and Fl oz
It will not compare items in different currencies, but it will use UK measures instead of US measures if required.