From http://codewithchris.com/common-mistakes-with-adding-custom-fonts-to-your-ios-app/ Print out all fonts from the app in consol

Add custom font

Objective-C:

for (NSString* family in [UIFont familyNames])
{
    NSLog(@"%@", family);
        
    for (NSString* name in [UIFont fontNamesForFamilyName: family])
    {
        NSLog(@"  %@", name);
    }
}

Print out all fonts from app

Swift:

for family: String in UIFont.familyNames()
{
     print("\(family)")
     for names: String in UIFont.fontNamesForFamilyName(family)
     {
         print("== \(names)")
     }
}