Here’s a quick guide to Best Mobile Apps for Buying Used Cars.
Edmunds - Best for Car Research and Analysis

Edmunds has been a trusted name in the automotive industry for over 50 years. The app stands out for its comprehensive research tools, detailed vehicle reviews, and massive inventory. You can compare thousands of used cars side by side and access expert reviews from industry specialists.
One of Edmunds' unique features is the "Can It Fit?" virtual reality tool that lets you check if a vehicle will fit in your parking space. The app also provides incentive and rebate information for each model, helping you understand the true cost of ownership.
Cars.com - Best for Traditional Dealership Shopping

If you prefer buying from established dealerships, Cars.com offers one of the largest databases of dealer listings. The app connects you with both dealers and private sellers in your area, making it easy to find local options.
Cars.com includes valuable tools like a financing calculator and value estimator that help you determine if you're getting a fair price. The platform also features over 10 million dealership reviews, giving you confidence in choosing where to buy.
Autolist - Best for Price History and Market Insights

Autolist aggregates listings from multiple sources, giving you access to one of the largest used car databases available.
Built-in buying and rental calculators let you estimate monthly payments, while the "hot car" feature highlights vehicles that are likely to sell quickly. Autolist also shows how long a car has been on the market and whether its price is competitive with similar listings.
Carvana - Best for Complete Online Experience

Carvana revolutionized car buying by making the entire process virtual. You can browse over 45,000 vehicles, get instant financing approval, and have your car delivered to your door without ever visiting a dealership.
The app features 360-degree virtual tours that let you inspect both interior and exterior details. Carvana offers trade-in valuations in minutes without requiring an in-person inspection, and every purchase comes with a 7-day money-back guarantee.
TrueCar - Best for Price Transparency

TrueCar focuses on dealer-only listings and price transparency. The app shows you what other people in your area paid for similar vehicles, giving you valuable negotiating power. TrueCar works with over 13,000 certified dealers to provide market-based pricing.
The platform's price-check tool helps you understand fair market value, and you can compare different vehicles to find the best estimated trade-in values and retail prices from both private sellers and dealers.
CarFax - Best for Vehicle History Reports

A built-in loan calculator helps you estimate monthly payments based on your down payment, interest rate, and loan term. CarFax also displays price history for each vehicle since it was first listed, helping you track market trends and negotiate effectively.
Using these apps can transform the used car buying experience from stressful to straightforward. Each platform offers unique features that cater to different shopping preferences, whether you want the convenience of home delivery, the transparency of price history, or the confidence of detailed vehicle reports.