Savings accounts and money market accounts are close cousins. Both allow you to move money in and out at your convenience, with their main function being to provide an option for you to sock away savings while earning interest on your balance. In addition, the federal regulation that limits savings account withdrawals to six per month is applied to both types of accounts. Traditionally, what differs between savings and money market accounts is that money market accounts include the option to write checks on the account. In contrast, savings accounts typically only allow fund withdrawals via electronic transfer, ATM cards (when offered), or in-branch visits.