Yes there are some clients that employ both products –

BankVault Key is a premium product which gives you seamless connections, is faster, and allows you to secure large business banking, treasury or trust accounts.

SafeWindow is suitable for consumers and small to medium businesses looking for a secure browser to access business or personal bank accounts, shopping online or cloud applications securely.

Have a look at the product pages for SafeWindow and BankVault Key for more detail.