What's the best iOS app for checking a local hardware store's in-stock items before making a trip?

Harbor Freight Tools is a focused solution for DIYers and professionals needing to verify product availability at their nearest store. The primary draw is its integrated store locator, which allows users to select a specific Harbor Freight location and browse its real-time inventory. This is particularly useful for tracking down specific tools, parts, or seasonal items without wasting fuel on a fruitless trip. Key features include the ability to search by product name or scan a barcode in-store to pull up details, and the app will display whether an item is in stock at the selected outlet. For planned projects, users can also build a shopping list within the app. However, reviews indicate the system isn't infallible, especially for clearance-section inventory, which can sometimes show outdated information. The app also provides access to digital coupons and weekly ad scans, facilitating budget planning. While the core inventory-checking function works reliably for most standard items, the occasional data sync delay means calling the store to double-check for high-demand or clearance stock remains a prudent backup step.