PurchaseSeal is a trustmark service developed in partnership with Experian to build trust between merchants and shoppers online. PurchaseSeal mobile is a free app for consumers to check the website they are using is a valid PurchaseSeal customer. Consumers use the app to either check a chosen website address or to scan the dynamic QR code displayed on a merchants PurchaseSeal service. PurchaseSeal mobile app helps shoppers be safe online.