Why should I choose premium data over free data?

Premium data is guaranteed to be timelier, more accurate, more comprehensive, better structured, and better documented than free data on Quandl. Premium data are created, updated and maintained by data providers with decades of specialist domain expertise. Premium data comes with quality, availability and support guarantees.

In short, premium data is designed for professional use and meet the highest standards of quality and reliability.  If you need data to make professional decisions, or are using data in an application or product, we strongly recommend premium data over their free equivalents.