Apple primarily uses its custom-designed typeface, San Francisco (SF Pro), for its Keynote presentations.
The Default Theme: When you open the Keynote app on a Mac, most modern themes default to Helvetica Neue or SF Pro, depending on your OS version. what font does apple use in their keynote presentations
Keynote Usage: Apple typically uses SF Pro Display for large headlines and titles on their slides because it has tighter spacing and more defined character shapes. Apple primarily uses its custom-designed typeface
SF Pro: This is the workhorse of the keynote. It is used for the sleek, bold titles and the clean body text that explains new features [3, 6]. San Francisco (SF Pro)