The Advance Auto Parts mobile application serves as a digital extension of the national automotive retailer's physical stores, offering comprehensive parts sourcing and purchasing capabilities directly through Android devices. Positioned as a solution for both DIY enthusiasts and professional mechanics, the app bridges online convenience with local inventory availability through its network of brick-and-mortar locations. Core functionality centers around an extensive catalog exceeding 125,000 unique parts, tools, and accessories searchable by vehicle identification number (VIN), make/model/year, or part number. The platform integrates real-time inventory checking across local stores, enabling users to identify immediate availability before purchasing. A standout feature includes the Speed Perks loyalty program integration, which automatically applies rewards and discounts during checkout. The app also facilitates multiple fulfillment options including same-day in-store pickup, curbside delivery, or standard shipping. User experience demonstrates thoughtful design with intuitive navigation divided into clear categories: parts search, store locator, shopping cart, and account management. The VIN scanning functionality eliminates compatibility concerns by automatically filtering results to vehicle-specific parts. Real-world usage patterns show particular strength in urgent repair scenarios where users quickly identify available components at nearby locations, with many orders prepared for pickup within 30 minutes according to user reports. User feedback consistently highlights reliability and time-saving benefits, with numerous five-star ratings emphasizing practical utility. Reviewer Karilynn Yarbrough (June 14, 2025) noted the convenience of multiple nearby locations and efficient pickup processing, while David Lockner (July 5, 2025) specifically praised the VIN-based filtering system for ensuring part compatibility. The loyalty program integration receives repeated mention as a value-added feature that enhances customer retention. The application demonstrates notable strengths in inventory transparency and fulfillment speed, though limitations include geographic dependency on store proximity for optimal same-day pickup benefits. Occasional synchronization delays between online inventory and physical stock have been noted in some user reports. Ideal use cases involve time-sensitive repairs where verifying local availability and quick pickup capabilities provide significant advantage over standard e-commerce alternatives.