So you've found the apartment of your dreams! Before you sign the lease, make sure you won't be paying too much for it. Just enter the zip code of where you'll be living, the rental price of your potential apartment (or what you'd be willing to pay) and how many bedrooms the space will have, and Rentometer will tell you whether the asking price is reasonable. Our test search generated results based on 75 properties within 0.7 miles of the entered location, and a "meter" showed us the floor and ceiling of rental rates in the area.