pg soft

I suggested the below 5 fonts to use to impress your visitors.

Open Sans – Google FREE font
https://fonts.google.com/specimen/Open+Sans

Roboto – Google FREE font
https://fonts.google.com/specimen/Open+Sans

Poppins – Google FREE font
https://fonts.google.com/specimen/Poppins

Nunito Sans – Google FREE font
https://fonts.google.com/specimen/Nunito+Sans

Montserrat – Google FREE font
https://fonts.google.com/specimen/Montserrat?query=Montserrat

Not just use these fonts also learn the importance of typography in mobile app design.
This will help you to keep uniform heading sub heading and paragraph font sizes.

Google in Material Design guidelines recommends setting the minimum size for Body text to be 16sp