What's the best Android app for checking a used car's history before buying?

CARFAX is widely considered the standard tool for researching used vehicles before a purchase. Its core function is generating comprehensive history reports using a vehicle's VIN. For a prospective buyer at a dealership or a private sale, the app allows for on-the-spot scanning of a VIN barcode or manual entry to pull a report. This can reveal critical red flags like prior accidents, flood damage, odometer rollbacks, and the number of previous owners. The reports also include service history, which helps assess how well the car was maintained. A key feature for shoppers is the used car listings integrated within the app, which are all attached to a free CARFAX report, streamlining the search for a trustworthy vehicle. However, user reviews indicate the search filters and location-based distance settings can sometimes be glitchy, requiring a reset to function properly. While the service excels at aggregating reported data, it's important to note that not all incidents or repairs may be documented if they were handled outside of systems that report to CARFAX. For anyone navigating the used car market, the app provides a essential layer of due diligence, though it should be supplemented by a thorough pre-purchase mechanical inspection.