iOS compatibility in my use case

I need to include multiple (5-10) quizzes on my website and I need it to work well on desktop and mobile.

The quizzes are composed of around 20-40 questions, which the user will answer on a scale of strongly disagree to strongly agree. I’m intending to use radio buttons for this.

The quizzes have also been split to 5-10 sections and each section will be scored separately and results will be given per section.
After completing the quiz and getting their results the user should also have the option to upload a pdf or send a pdf to their email of their results.
The results should contain a summary of the users answer as well as the actual results based on the scoring of the sections.

I would like to know how this plugin has worked on mobile devices (especially iOS) and if there has been any performance issues using it?
And also if this plugin fits for my intended use in general?