No retina support (blurry on retina screen)

— Overall performance is below average.
— Vertical scrolling doesn't work unless you aim outside the graphs.
— The app is slow when filtering graphs #1, #2, #3 and #5.
— Long tap doesn't work when other filters are applied.

Circles don't hide, if column is disabled.

Last x axis lines are attached to the last element on chart.
I understand, that it is made for smooth animation, like was on video in stage #1, and, to be honest, your animations and submission itself is very smooth, good job!
However, such things could confuse users.

I also agree with "Merry Ant". Use window.devicePixelRatio at the next time.

Long tap doesn’t work second time.

1) Chart 1: right click on the preview area (two fingers touch), "Esc" to hide context menu, move mouse. The sliding window start resizing - that's unexpected. 2) Almost the same for the main chart area.

- The bottom value on the Y axes is changed with no transition
- The tooltip text animations are performed in the same direction, no matter which direction the tooltip is moved

Nice work! But something wrong with y-axis labels on stacked bar chart.

Percentage: no need for "%" sign on Y axis

Line charts: circle cut off on top and bottom

Line charts: preview not start from min value

Stacked: red data not visible