Design tools like Figma and Sketch include SF Pro-Regular for prototyping Apple interfaces. You can use it to design an iOS app. However, you cannot export that design and use the font for a non-Apple website or brand.
: It cannot be used for general commercial purposes like logos, third-party websites, or physical advertising without violating Apple's terms. Common Alternatives
body font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;