What's the best iOS app for buying guaranteed authentic sneakers?

GOAT – Sneakers & Apparel is specifically designed for buyers seeking guaranteed authentic sneakers. The platform operates as both a marketplace and authentication service, where every pair undergoes verification at one of their facilities before reaching customers. This system addresses the widespread concern of counterfeit products in the sneaker resale market. Users can browse thousands of styles from both current releases and archival collections, with detailed condition ratings and multiple photo angles for each listing. The app's authentication process involves physical inspection by specialists who check materials, stitching, labels, and other authenticity markers. Shipping typically takes 7-10 days total as items route through verification centers. Some users note occasional delays in return label emails, but overall feedback indicates strong satisfaction with authentication accuracy. The app also offers price tracking and alerts for specific models, helping buyers make informed purchasing decisions.