Apple’s San Francisco font is proprietary. Using a cloned version for personal projects is usually fine, but redistributing it or using it commercially could violate Apple’s license.
You can download the iOS-v14.ttf font from various online repositories that offer free font downloads. Some popular websites for downloading fonts include: ios-v14.ttf font download
UI/UX designers need the exact font to create realistic app mockups. Apple’s San Francisco font is proprietary
The clean, sans-serif font used for menus and text. ios-v14.ttf font download