— The app crashes on launch.
— The design does not comply with the guidelines.
— The graphs are slow when filtering and scrolling.

APP CRASH.

Doesnt match design. Y-axis is not percentage. Long tap on buttons not works

Incorrect selection color for #3 chart (alpha mask should be applied to non-selected bars)

Wrong tooltip UI

Poor performance overall, especially after opening tooltip window

Switching to nightmode recreates activity

Hello. I tested your app on 2 real devices. I found some
issues:
1. App crashed on Innos d6000. The problem on first chart, when I changed size chart1 and clicked on screen, the app had crashed. (screenshot 1 and video 1).
2. The app bar looks so strange after rotate on OUKITEL C5. (screenshot 2)
3. The points of values looks wrong after rotate on OUKITEL C5. (screenshot 2)
4. After double rotate, the lines of second chart looks wrong on OUKITEL C5. (screenshot 3)
All of issues on OUKITEL C5 you can see on 2 video.

It's possible to open two tooltip dialogs

Date view displays static range (see two attached screenshots with different ranges)

Range selector doesn't match spec

Enable disable buttons from stage 1

There is no second (right) axis labels in 2-Y-axis chart. Also the left one has incorrect collor

White lines between bars (possible incorrect rounding)

Come on guys, stop complaining about things that were not specified by telegram rules. There were no requirements about how night mode should be implemented. Actually, it is a native approach when change theme to recreate activity. All others are very custom approaches.