Sloppy vertical scrolling, but decent speed overall. Time ranges are discarded when scrolling. Night mode is often faulty (white date range bar).

switching the theme freezes the app

Chart 4 does not start with 0 (it’s a bar chart), and selection goes through the bottom line

Days range stays white after switching to the night mode

“All” selection line disappears after deselecting all but one data (which is totally cool) never to be seen again. So after selecting second data it just shows empty space in its place.

Header displays wrong dates after zooming in: Jan 19-23, while selected range contains only Jan 19th and Jan 20th. Zoomed in selection info does not display selected time.

Pie chart does not move selected slice to highlight selection as it should according to the design.

The whole screen sometimes fidgets after zooming in.

Pie chart selection info displays percents instead of actual values.

Changing day or night mode, moving slider and scrolling to another charts removes current selection.

Zooming resets selected filters.

Lines can become too thick during animation

# Chart 4
- A lot of unused space above graph.
- Zoomed in chart is not supposed to show range selector. And the date is supposed to only show one date instead of a range.

# Chart 5
- Percents do not always add up to 100 (percent_sum.jpeg).
- When zooming in we see not the date, but a range, no way to get a particular day. Also, percents do not match the ones that we see in zoomed out, but thats probably because of the range and not one date.

— Zoom animations are missing.
— Lower bound values are below the X-axis (the attached screenshot #1).
— Values on Y-axis blinks when filtering (the attached video #2).

Major issue: filter toggle on bar chart is not smooth.

Fully deselected chart 1 displays grid lines with values 1-4, but fully deselected chart 2 does not show any lines at all.

Fifth chart displays extra empty file for filter buttons.

X-axis labels disappear/appear without animation. Range selection view has incorrect design.

It's possible to hide all columns on chart where it should not be possible at all.

The last cell has extra space.

Double tapping column visibility button on bar chart causes animation issue.

Zooming in/out causes scroll jumps on chart #2.

Part of the stacked bar is not clipped

# All charts
- Range selector jumps on start of panning gesture. (1.MP4)
- Range selector has square corners instead of round.
- Zoomed in chart range has a shift of +3 hours (I think its my timezone).
- Zooming into 6 Apr zooms you into 3Apr - 7Apr

# Chart 1
- Weird animations of graph appearance (chart1_visibility_animation.MP4)

# Chart 2
- Y Labels with same color as graph are sometimes hard to read. (hard_to_read.jpeg)
- Massive zoom out glitch (zoom_out_glitch.MP4). You have to zoom in, scroll to the first chart, then scroll back and zoom out. (has been reported, but here is a concrete scenario).

Graphs animations are not synchronous. Doesn't feel right.

If you tap on filter when previous animation is not finished the transition looks bad

Major issue: 30 fps during 1st chart scaling on iPhone 5, 46 fps on iPhone 6+. For more details read my comments about performance of entry213.

Horizontal lines are not semi-transparent. Not only the UX is suffering, but also it gives this contestant an advantage in performance over other participants.

Left position of bar chart is changing during scaling.

After zoom out bar chart goes below date labels.

Wrong minimum. It may give this contestant an advantage in performance over other participants.

maxY on chart has to be on the same position as y-coordinate of the highest y-value by design.