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Testing and Issues

You can test this app and submit issues during the testing period of the iOS Chart contest.

Install .ipa files via AltStore

Entries with serious issues will not be able to win the contest, but even minor issues might be important for overall results.


by rating


Sloppy vertical scrolling, required animations are missing.
iPhone 6 Plus, iOS 12.1
Cannot really test the app. Because see video.

Noticed some issues besides the one on video:
1. Scaling and touching down to show tooltip is allowed, but then it gets bugged visibility.
2. Stacked bar drops frames on scale.
3. Also there are no animations, but that was mentioned before.
iphone6 12.1.4
Sergey Dikovitsky Apr 17, 2019 at 23:05
Values sum gives 97% only.
iPhone 5s / iOS 12.2
Hip Gnat Apr 18, 2019 at 06:39
Just rounding. I have no time for such small things during contest
Hip Gnat Apr 17, 2019 at 20:22
It is true, but in some cases it will show actual data faster than other variants with chart line animation.
I can’t hit slider to change interval
IPhone 6s, iOS 12.2
Hip Gnat Apr 17, 2019 at 20:23
I couldn't even think about this during contest) but it may useful for better UX. Thanks for new task)
Navigation bar, labels and range selector changes theme without animation
iPhone 8 / iOS 12
last chart's vertical axis doesn't match the required design
Fair Quokka Apr 27, 2019 at 17:32
— The slider blinks when switching themes.
— The app is slow when scaling.
— The app blinks when filtering the third graph (the attached video).
iPhone 6s, iOS 12.0.2
Sergey Dikovitsky Apr 17, 2019 at 23:02
Range selection control is not responsive, but it can only be captured by camera.
iPhone 5s / iOS 12.2
Sergey Dikovitsky Apr 17, 2019 at 23:03
Red column can not be hidden.
iPhone 5s / iOS 12.2
Hip Gnat Apr 18, 2019 at 06:27
You can select another one filter by long press in it. This restriction by design.
Chart clips to bounds.
iPhone 8 / iOS 12
Dates are clipped
iPhone 5, iOS 10.3
See top video. Vertical and horizontal axis no animations. Only changes numbers/date in fixed positions
Hip Gnat Apr 17, 2019 at 20:25
It is true too. I was focused on charts implementation, so just had no time for this features. Thanks for attention.
Button border disappears on long tap on 2-3 buttons
iPhone 8 / iOS 12
Theme changing lags on scroll
iPhone 8 / iOS 12
Scrolling has noticeable lags even on iPhone 8.
iPhone 8 / iOS 12
Selecting values and changing range causes lags in information view
iPhone 8 / iOS 12
Chart in range selector and main chart has totally different data
iPhone 8 / iOS 12
Hip Gnat Apr 18, 2019 at 12:07
I used simplified(not all points) data in navigation view, so you can see global behavior.
Does not support iOS 8. Telegram does.
maxY on chart has to be higher than the top line
Ugly filter toggle. 20 fps on iPhone 5
Chart lines have to be under horizontal line by design. Thus this contestant has potential advantage in performance because he can use opaque layers for lines.
Checkmark intersects with the title on filter buttons during the filter activation/deactivation
Critical issue: 20 fps during bar chart scaling on iPhone 5. For more details read my comments about performance of entry213.
Nobody added any issues yet...