read the fine print. "Q. Don't I need a minimum of $25,000 to trade? A. No. It is true that last year the SEC passed new rules that required individual day-traders to maintain minimum equity of $25,000. However you can begin day trading though a sub account with us with a deposit of as little as $5000." not 100% proprietary, i'd say.
If you are learning 9.95 a trade will not be great for your bottom line, trading small lots. Better off finding a place where you pay per share etc.