Which sports brand pioneered the first widely successful mobile app that allowed customers to scan their feet at home for precise shoe sizing?

The sports industry has seen remarkable retail digital transformation over the past decade, with certain brands leading the way in how athletic products are marketed and sold. This trivia question explores one of the most significant digital retail innovations that changed how consumers shop for sports equipment and apparel.

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Nike (Nike Fit technology)
Adidas (Fit Intelligence platform)
Under Armour (UA FitScan)
New Balance (NB Virtual Fit)