What's the best Android app for scanning items as you shop to skip the checkout line?

BJ's Wholesale Club is a strong contender for shoppers seeking to minimize time spent in checkout lines. The app's core utility for this task is its Scan & Go functionality, which transforms a smartphone into a portable scanner. Members can scan product barcodes as they place items in their cart, building a digital list. The app then generates a QR code for payment at a dedicated express lane or kiosk, effectively bypassing the main checkout queues. This is particularly useful for quick trips or when purchasing a limited number of items. An added benefit is the integrated coupon system; the app automatically identifies and applies available digital coupons for scanned items, ensuring savings aren't missed. User reviews frequently highlight how this feature has saved them significant time during busy shopping hours. However, the experience isn't without occasional technical hiccups. Some users report that the scanning camera can be inconsistent, sometimes requiring multiple attempts to read a barcode properly. Performance also seems to vary after updates, with periods of snappy responsiveness followed by bouts of lag. Despite these intermittent flaws, the fundamental value proposition for avoiding long lines remains intact. For BJ's members, the app provides a tangible upgrade to the in-store experience when it functions smoothly.