Hi Yonda, thank you for your questions!
Our dictionary is free, however, users of different levels have access to different numbers of lists and cards. After you log into trainchinese.com, please click on More..., then Account. On the page of Account, under User Status, you will be able to see how many cards and lists you have access to.
On the same page, if you scroll down a little you wil see the option to change the email on your useraccount. Hope this is helpful! Please feel free to write us if you have more questions: cs@trainchinese.com
Thank you!