Dreyfus does not have an official mobile app specifically designed for managing accounts. However, Dreyfus offers clients the ability to access their accounts through its website. The website is typically optimized for mobile use, allowing customers to check balances, review transactions, and perform other account management tasks conveniently on their smartphones or tablets. Users may find it helpful to bookmark the Dreyfus website on their mobile devices for easier access. For additional information related to account management and any recent updates, it is advisable to visit the current Dreyfus website, where one may also find contact details if needed.