As of Tuesday, November 11, 2008, I have begun collecting all data files uploaded through ReCal in order to improve the application. (Prior to today, all data was discarded as soon as ReCal ran its calculations.) By using ReCal you agree to license your data files to me for this purpose and for no other. Since your data files consist entirely of numbers meaningful only to you, it is completely anonymous—this is one of the reasons ReCal does not require text data headers. Google, Yahoo, Microsoft, and other providers of online services use your personal data in similar ways—but I don’t sell your files (not that there’s a market for CSV files full of unlabeled numbers anyway). If you have any questions about how I use ReCal user data, please leave them in comments below.