• a clean, low-chartjunk philosophy — no shadows, no pie charts, no 3-D bar graphs, just the ink you need.
• access to the data behind a chart, even from within the chart.
• the ability to easily join multiple data sets (e.g., to compare your time series data set with another).
• the ability to create calculated variables to analyze and transform the raw data (e.g., to adjust for inflation).
• a growing repository of economic, social, and sports data sets, suitable for joining with your own data.
• auto-updated data sets which incorporate new data as soon as it's published by the primary sources -- and which also update any derived charts automatically.
• easy, one-click small multiples (something that’s either unavailable or a PITA in every other web tool we know of).
• access to extra chart dimensions using bubbles and shading to increase the density of your data.
• smart filters and data binning, to aid in the summarization of large data sets.
• handy shortcuts like the ability to automatically identify and label outliers.
• fine-grained control of layout and appearance — our goal is to enable the creation of publishable graphics and interactive web embeds.
• a nifty look (with help from Involution Studios).

Our goal, however, isn’t just to develop a great vizualization app — it’s to develop a tool to make it easier for you to communicate data more clearly, more efficiently, and more honestly with the viewer.  We want to make it easy for you to make a gorgeous, verifiable vizualization, by allowing viewers to explore the data, manipulate the presentation, and even build on it to bring out richer, clearer, or just plain different conclusions.

One reason there are so few great presentations is because it’s always been so much work to create them.  Our goal is to remove that excuse, so that the only reason a chart isn’t verifiable is because it wasn’t meant to be.

Some history on our team and development as a company can be found here.