You may use PixieEngine for free without giving us any personal data. We do track feature usage anonymously to help us to develop the site. When you create your account you will need to supply us with your email address. This email address is used only to identify your account and to communicate with you about PixieEngine.
We use Spreedly for payment processing. Payment information may contain personal data about you including your address, phone numbers, credit card numbers etc. This information is stored with Spreedly only for payment processing and is not used for any other purpose. We are not allowed to disclose such personal information without your written permission. The information we collect is not shared with or sold to others except where required by law.