It is possible to use custom fonts and for them to still work great with Dynamic Type. You need to define the default size and use UIFontMetrics to get the scaled font for each one of the styles you'd like to use.
https://developer.apple.com/documentation/uikit/uifontmetrics/scaledfont(for:)
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If you have any web views in your app (Terms and Conditions and Privacy Policy, I'm looking at you), you can also support Dynamic Type for them. You can set an Apple system font with the same styles available for native development in your CSS.
It is not just about applying accessibility APIs, but about caring, and thinking of features that can make your app more accessible and inclusive to everyone. Twitter's alt-text feature is a great example. Thanks, @TwitterA11y! You'll be missed.
"We have one job, and that's to make our apps work. And if you are not implementing accessibility features, you are forgetting about making it work for a lot of people" @NovallSwift Couldn't have said it better! https://x.com/novallswift/status/1328387659744505856
