A share price on its own rarely tells you whether a stock is expensive or cheap. So this tool sets the company you are analyzing side by side with comparable peers.
It looks at how the current price is valued against revenue, earnings, and cash flow, and shows whether the company trades richer or cheaper than its peer group.
The point is not simply to find a low price. It is to check whether the company can actually deliver the growth and profitability the current price is counting on.