Lots of potential, could use more HealthKit support – Grafer - graphs of your life with statistics. Review

I checked out this app after I got fed up with HealthKit's anemic graphs that lacked vertical graticules. I love the Dropbox integration and UI, but this app needs better visualization with marked grids and flexible graph types (like what HealthKit is doing with marked line vs. whisker plot with data like BP and HR, but with better readability). I'd also like to see support for all HealthKit data types. Things like standard deviation and other assorted statistical measurements would also be fun. And as an ambitious request, I would love to see correlation values between two data sets such as Heart Rate and Caffeine. Overall this app is going in the right direction though, and I've been searching for something like this for a while. I anticipate future updates.
Review by spel3o on Grafer - graphs of your life with statistics..