Download .IPA (5.6 MB)

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


Charts are too large and take the entire screen of an iPhone 6 Plus. Lines are thinner than expected. No bonus goal. Y-scale takes a while to rescale on horizontal scrolling, but good speed overall. Percentage marks go before the values.
iPhone 6 Plus, iOS 12.1
100% is cut off (%100)
iphone 6 12.1.4
Stout Starfish Apr 21, 2019 at 13:30
oh no :((
Sergey Dikovitsky Apr 17, 2019 at 17:15
Incorrect date format, value strings have no spaces. View with values can only be shown when panning.
iPhone 5s / iOS 12.2
Sergey Dikovitsky Apr 17, 2019 at 17:17
Percent symbol should be after value (%2 => 2%).
iPhone 5s / iOS 12.2
some elements update later then others on changing theme, makes date labels and the chart area have wrong color for some time
iphone 6 12.1.4
incorrect mask in night mode
iphone 6 12.1.4
Fair Quokka Apr 27, 2019 at 20:19
— The third graph is slow when scaling, it also blinks and jitters when filtering. 
— The percentage in the last graph is incorrect (the attached screenshot).
iPhone 5s, iOS 12.2
inconsistent filter animation on stacked bar
iphone 6 12.1.4
Deleted Account Apr 20, 2019 at 10:37
If there’s only one data type available, its filter button should be hidden according to design.
the tooltip disappears on touch up or applying filters + switching theme makes it have incorrect design
iphone 6 12.1.4
crashes on iPhone 5
iPhone 5, iOS 10.3
On top image percentage chart Y not have 100
Deleted Account Apr 20, 2019 at 10:18
Percentage chart does not seem to display selection correctly. It shows the same dates on different places of the chart area depending on the length of the range selected by slider.
iPhone SE, iOS12
Deleted Account Apr 20, 2019 at 10:28
Selection info can overlap the currently selected bar.
Deleted Account Apr 20, 2019 at 10:41
Every chart has a cut off date on the bottom left initially which does not belong to the chart range (March 18, I believe)
iPhone SE, iOS12
Will write all issues here:
1) Lines scales and animations are laggy.
2) First/last x labels positioned wrong.
3) Y label positions are wrong.
4) Slider size is bigger when full selection.
5) Bar show/hide animations buggy.
iPhone SE
Critical issue: line width is A LOT thinner than it needs to be by design. Beware: it is not some inaccuracy in design, it was made intentionally in order to achieve HUGE advantage in performance over other participants. The thinner your line, the lower CPU/GPU utilization is. I think such apps should be excluded from this contest.
Does not support iOS 8. Telegram does.
Wrong number format on tooltip
Nobody added any issues yet...