Typography plays a crucial role in
mobile UX & UI design and requires deep thought. In general, try keeping the number of font styles to the minimum. Remember that sans-serif fonts are easier to read in lower screen resolutions. Also bear in mind that
italics are difficult to read, especially for users with dyslexia. The same goes for ALL CAPS, so text where all letters are capitalized. All caps work well with logos and acronyms but when you overuse them for titles and headings, they slow scanning speed.