Filtering the third graph is critically slow when zoomed out. Sloppy when scrolling the first two graphs vertically after zooming them out. Otherwise speed is above average+. Bonus goal implemented+

Long touch to deselect all is not implemented

Application becomes unresponsive when tapping on column visibility buttons. Long tap does not work.

Where my selector? :)

The highlighted bar does not exactly match the graph thats under it.

Percentages in zoomed out state do not match the ones in zoomed in state

Value labels in the "values view" are supposed to be left aligned by design, here they are not.

Percent values for day doesn't match.

The exact same day has different percents in area chart and in pie chart. 

It differ for 3 point for some items:
Oranges: 29% → 26%

Font size in information view is not static (take a closer look)

The cell with the chart blinks on zoom cancel

Different date values on leftmost point.

Filter toggle on bars is not animated.

Change visible small lags, and on the right big bars...

Zero Y axis?

Info view streched while zoom in / zoom out animations.

— Filtering the last graph produces glitches (the attached video #1).
— The slider's width changes when switching themes (the attached video #2).
— Long tap on data filter doesn't uncheck all other filters.
— iOS 11+ only.

If you resize range selector to fast, dates will cover each other. Also, dates clips to bounds (chart is not)

Selector line in bars chart always has different width in same range selected.

Values sum gives 99% only.

Selector line in bar charts appears/disappears in full zoomed out state, when moving finger.

12 Oct, Mango value is 3010. After zooming in, the date is still the same - 12 Oct, but if we check out the value of mango it is 5250. Only one of them is correct, try to guess which one.

Smaller font for one of the items in info view

The value of the line is 1.4k, the actual value is 1400. But the point is very much above that line. If i was not using the "values view", I would think that it is more like 1440 than 1400

Applying filters on stacked bar chart renders app unresponsive while drastically decreasing its performance

Whole chart cell disappear on chart hiding animation :(

1. Tap on info view to show chart
2. Tap on back before appear animation completed

Info view not by design. It should be align centered with value.

Design issues.

- Theme navigation bar button has wrong text color.
- Wrong arrow in info view
- Issues in X labels:
1. Wrong vertical space.
2. Wrong text color
3. Not reduced character spacing

Different values for the same day in area chart for zoom in (area) and zoom out (pie) modes.

Really small issue: pie moves on touch, when you have selected only one option

Nice try with the Y animations, but they are not as accurate as the animation video sample provided by designers. 195 (the value that is leaving) is doing it in between 90 and 136, which does not exactly match the logic that was supposed to be implemented. Another problem is that the point on the graph is moving faster and for a moment gets separated from the graph.

The selector can become so small, that the left part will be overlapping the right part.

The time label is actually not straight under the point which represents 21:00, the label is not centered. The design suggests, that you center it right under the point.

Animations of y labels are wrong. They should start from current context, so lower values from bottom, higher from top. Here they go from one random side.

Also, graph animation is soooo slow.

Range control top and bottom edges disappear

1. Choose night theme
2. Scroll down to hide first chart from screen
3. Change theme back to day
4. Scroll back to first chart
5. Range control under first chart has no borders on the top and bottom edges

X labels crop on both sides. But chart lines not. Not by design.

Incorrect Y range and strange bar scaling

all these issues are insignificant tho

Great app, congrats :) I used your app myself as a guide to how to do stuff :D you shouldve take the first place in contest 1

Some sizes and margins are wrong

Multi-touch not supported in range control selector.

Can't grab and move another side of the selector while first one under the finger.

Yeah, it wasn't any requirements about it, but iPhone was built with multitouch support from the ground and this issue looks not user friendly and wierd.

You updated TestFlight version for testers after stage deadline. Does not look like a fair play 😕

You have white shadow in range selector in any chart, in design white shadow is only in last charts

There good app. But found small bug, see range buttons on video

According to design, this line should not be extending beneath the graph view.

Dates overlap on scaling

Info view not by design.

It should be align centered with line if there is avaliable space below it.

"All" item in the info view for only 1 item in the list with the same value 🤔

Wrong design for zoomed 4th chart.

- In some cases there is large space between chart bottom and filter buttons.
- In other cases chart height is less than should be.

Range control remains interactive after chart zooming.

1. Start interacting with range control.
2. Keep your finger on it.
3. Tap on info view to zoom chart.
4. Move finger to any direction.
5. Tap to "Zoom out"

Result: range control hasn't state it has before "zoom in" transition. Has position it had before finger was touch up.

Lines "dancing" on stack bar chart when filter applied.

Dancing == Change their width back and forth.

It shouldn't happen without changing min or max X.

Chart isn't taking whole space for scale: Min value isn't placed at bottom chart edge and Max value isn't placed at top edge

When applying filter a part of Y axis lines are animating while the other part is staying at place. It's mathematically wrong. Also lines are moving in wrong (opposite) direction.

Wrong slider behavior (it resumes not from the grab point) when dragging through it and then going back

X axis has not constant interval between values: sometimes it's 5 days and sometimes it's 6 days interval.

animation issue on pie chart leads to blinking line effect once unclick content type. most visible for unclicking pre-last one.

It should not be a space between the number and percent symbol in info view.

no support

Doesn’t run on iPad 4

Bar chart columns completely misaligned with their X values.

Does not support iOS 8. Telegram does.

Major issue: does not support iOS 10.

Wrong maximum, wrong minimum

Major issue: 41 fps on iPhone 5S during 1st chart scaling, 42 fps on iPhone 6+. For more details read my comments about performance of entry213.

Can't apply new filter until the animation of previous one is finished.

Zoom feature has minor lags.

Zoom feature lags has more noticeable lags on bar chart.

Different width of bars during selection. It may indicate that this contestant uses only integer values for drawing. Not only the UX is suffering, but also it gives this contestant a major advantage in performance over other participants.

Selection is gone.

Noticeable input lag on filter toggle.

Wrong chart positions

Wrong dates on x-axis

Errors in selection mask

Labels on x-axis are cutted sometimes

Wrong line position and percent

Line and tooltip shakes and flashes. Also tooltip always change its position from left to right and vice versa, but I don't change my finger position.

Chart flashes when I enable and disable filters

Yellow chart labels change its position from right to left when blue chart is disabled. It's very strange idea.