Only did a quick search but it seems like it's the iOS package name for the Amex Mobile app[0] [0] https://www.americanexpress.com/uk/customer-service/digital/

Only did a quick search but it seems like it's the iOS package name for the Amex Mobile app[0] [0] https://www.americanexpress.com/uk/customer-service/digital/amex-mobile-app.html https://www.americanexpress.com/uk/customer-service/digital/...