It is a two-factor authentication solution.
Hundreds of billions of orthogonally different secure codes/year . Ideal for social media / Ecommerce / Banking with large user bases
Easy to Manage
Quick Over-the-air deployment, even among billions of users. Easy re-registration with lost/stolen phones
Free Phone apps mean no additional cost for user. No additional hardware cost for enterprise
Added provision to enter enterprise URL.
With Family Sharing set up, up to six family members can use this app.