Text Format /Type settings don't work on phone

[Sunnyi]

Hello!

I set up my website and everything works out fine with the text/type settings. But on the phone and iPad the text is always shown in a different font. Eventhough I used text-formats. Can you please help me?
This is the website: www.burkhardt-architekten.de

Thank you!

[mariusjopen]

Dear @Sunnyi
on which phone and browser?

On my test devices it works fine.

Best!

Marius