The best kbb.com apps on iPhone average 4.8★ across 0+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
Easily find your car's Fair Market Value® using the nation's largest transactional data. Discover what you could sell or trade your vehicle for, and see what similar cars are selling for in your area. Research and shop for your next vehicle with confidence.
Browse new, used, and certified pre-owned vehicles from dealerships near you. Access free CARFAX Vehicle History Reports with every used car listing, view price history, and compare vehicles with detailed information and photos.
Explore millions of new and used cars for sale with advanced search filters. Compare vehicles, read dealership reviews, and get personalized financing and selling offers. Find your next car with confidence.
Kelley Blue Book: We Know Cars tops our kbb.com apps ranking as of September 2026, with a 4.8-star average from 7.1K App Store ratings, and it's free to download.
Are there free kbb.com apps for iPhone?
Yes — 20 of the top kbb.com apps we rank are free to download, including Kelley Blue Book: We Know Cars and CARFAX - New & Used Cars.
Does Kelley Blue Book: We Know Cars have ads or in-app purchases?
Kelley Blue Book: We Know Cars shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
What does this app do?
This app provides users with tools to determine the Fair Market Value of their vehicle based on extensive transactional data. It also helps users understand their car's trade-in value and research what similar cars are selling for in their local area. Additionally, it offers features for car research and shopping.
How do I get my car's value?
To get your car's value, simply enter a few details about your vehicle into the app. The app will then use its comprehensive database to provide you with an estimated Fair Market Value. This process is designed to be quick and easy, leveraging the largest transactional data in the country.