After having seen some charts made with text, I had the urge to create a chart generator that could run on iOS.
After having converted the great asciichart from Python to Swift, I've created a small utility app using SwiftUI & SwiftData.
Here is an example of chart generated from the app:
18┼╮
17┤│
15┤╰╮
14┤ │ ╭╮╭╮
12┤ ╰──╯│││
10┤ ╰╯╰╮
8,8┤ │ ╭╮ ╭╴
7,2┤ │ ╭─╮╭╯╰╮│
5,6┤ ╰╮╭╯ ││ ││
4┤ ││ ╰╯ ╰╯
2,5┼ ╰╯