Control Your Funds. Control the Road. EFS CardControl is the innovative source that allows you easy access to your EFS card features while on the go. Get real-time card balances and check your transaction history. Manage your SmartFunds, and register checks. Schedule transfers, and find fuel locations by price and by route. Whatever your need, EFS CardControl allows you to quickly manage your account anywhere. This convenient, secure mobile app is your ultimate source for EFS card access and control. Features: Check your balance. Review your transaction history (NEW.). Register checks (NEW.). Find fuel prices and locations based on location. Find fuel prices and locations by route (NEW.). Manage your EFS SmartFunds. Transfer funds to external bank accounts While free for the public to download, EFS CardControl requires users to be a current EFS customer with a valid and active EFS card number and password/PIN in order to use this app.