Design has always been Apple's top priority. Given this, iphone users have long been accustomed to the fact that their gadget has a stylish and colorful interface design and an intuitive control system.
When creating a mobile app for ios, customers are often asked to implement a unique element design that is not always approved by the official developer platform. Here you need to take into account the balance, as mentioned earlier in order for the developed application to get into the AppStore, you need to take into account the guideline platform.
This also includes such a nuance in the development of mobile applications on IOS as the introduction of a dynamically changing system font size. If you do not take this feature into account, the IOS font will remain static, without the possibility of changing it dynamically.