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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, overall poor to average performance on graphs with lots of data. Bonus goal+
iPhone 6 Plus, iOS 12.1
Sergey Dikovitsky Apr 17, 2019 at 22:39
Long tap on button does noting ("A long tap on any data filter should uncheck all other filters.").
iPhone 5s / iOS 12.2
Stout Sloth Apr 17, 2019 at 22:41
Already reported. It's not ok to report the same issue twice.
It is possible to scroll both handles of the trimmer and place an annotation at the same time -> in this case the app starts underperforming a lot.
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:57
This is a feature. Can you do such a thing with your app?
Small Lags on scroll
IPhone 5s, iOS 11
Stout Sloth Apr 18, 2019 at 19:26
Technically - yes. But we should understand that this is the device which was presented 6 years ago ) Aaaaaaand this app is working very smooth on this device. And you can run it on iPhone 4s even with iOS 9.
Fair Quokka Apr 27, 2019 at 17:51
The third graph blinks when filtering.
iPhone 6s, iOS 12.0.2
Y axes never scale and change values, the series are static
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:28
Yes. But scale adjustment is not a requirement, i.e. it was in the demo video but not described in any text. In demo video was another design for many elements like chart switcher for 1st stage.
While filtering the double axis chart it is possible to only have a blue chart with yellow axis
iphone 6 12.1.4
Deleted Account Apr 21, 2019 at 11:44
Chart is totally inaccurate, value 1590 should be way closer to the 1.5k line than to 2k, if I did not look at the values I would assume its something like 1950, not 1590.
iPhone SE / iOS 12
Incorrect animation if change visibility bars
IPhone 5s, iOS 11
Stout Sloth Apr 18, 2019 at 19:22
There are no strict requirements for animation, so it's not an issue.
No action while long tapping any filter button, no indication that it got touched down on
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:21
There were no requirements for touched down indication. So it's not an issue.
Changing theme from the state described above (to achieve it you need to hide blue, then yellow, then show blue) results in axes values being gray
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:25
Yep. It's an issue. Thanks.
Bar charts' tooltip show vertical line, circles for line chart annotation do not respect the theme
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:43
Selecting the last date and zooming in on it makes the trimmer do nothing on the zoomed in chart.
iphone 6 12.1.4
No animation on the mini charts
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:56
Aaaaand this is not an issue because there was no requirement for this part.
The single bar chart doesnt show other lines when you zoom on on the left edge
+ u can trim and scroll the zoomed in single bar chart if u zoom in while holding the trimmer handle
iphone 6 12.1.4
Stout Sloth Apr 19, 2019 at 07:59
The requirements proposed to show data from 1 day and 1 week ago. If there is no data i decided to show just selected day instead of showing random data. So it's not an issue, it's a feature.
While trimming/scrolling and holding touch to show tooltip its somehow possible to make the tooltip be invisible, only dots would be left
iphone 6 12.1.4
Just noticed that zooming in on the Y-scaled chart only zooms you in on one day, instead of a week. Although on other charts, it zooms you in on the whole week.

Still nice app, liked. I even think your design is better than provided.
iphone6 12.1.4
Stout Sloth Apr 21, 2019 at 18:42
Well, thanks )
Scaling graph at the edge makes it go over the bounds
Flickering dates' labels updates
iphone 6 12.1.4
No alpha on trimmed-out range
Dates and zoom out button are not by design
Tooltip starts moving with the finger way too late, at first it seemed like its not possible at all
iphone 6 12.1.4
Stout Sloth Apr 17, 2019 at 22:35
Over trimmed-out range is the overlay but not alpha.

It's not an issue at all, because there were no design files. There were no requirements for element positions and etc.

"Tooltip starts moving with the finger way too late, at first it seemed like its not possible at all" - is not and argument at all.
Wrong X axis behavior on changing scale: all dates replacing and no fade-in/fade-out animation.
iPhone 6s / iOS 12.2
- There should be 6 but not 7 lines of Y axis.
- Wrong slider design: 1. no corner transparency 2. too thick top and bottom borders 3. too thin left and right borders 4. wrong arrows design 5. preview chart line width too thick 6. sliding stripe height is too large 7. covered chart line color is wrong 8. trimmed zone cover background color is wrong.
- Overall design inaccuracy (see screenshot)
iPhone 6s / iOS 12.2
Stout Sloth Apr 20, 2019 at 12:23
Does not support iOS 8. Telegram does.
Wrong chart order
5th chart's y axis doesn't match the required design
Critical issue: 17 fps during area chart scaling on iPhone 5. For more details read my comments about performance of entry213.
Can't apply new filter until the animation of previous one is finished.
can't choose another date by sliding your pressed finger, always have to tap on another date
slider's border blinks during night/day switching
Dates are redrawn at certain positions. Not only the UX is suffering, but also it gives this contestant a major advantage in performance over other participants.
Critical issue: 34 fps during line chart scaling on iPhone 6+. For more details read my comments about performance of entry213.
Nobody added any issues yet...