Yes, there is a mobile app for Marcus by Goldman Sachs, which allows customers to manage their financial accounts conveniently from their smartphones. The app provides various features, including the ability to view account balances, track transactions, transfer funds, and access savings and investment options. Users can also receive notifications regarding account activity and important updates, enhancing their banking experience. The app is designed to be user-friendly, making it easier for customers to stay on top of their finances on the go. For precise information about the app's features, availability, and any updates, it is a good idea to visit the current web page of Marcus by Goldman Sachs.