In addition to attracting investments, prototyping has some other important advantages.
The most important is a high-quality prototype because it minimizes the financial risks. You can test it, add, remove, or modify its elements, receive feedback from users, update it until you get the perfect result. At this stage, changes can be easily implemented without substantial time or financial losses. On the contrary, making changes to the ready-made product will require a lot of resources.
Also, the prototype simplifies the interaction between all participants in the development process: between customers, programmers, and designers. When you have a clear clickable detailed model of the future app, this eliminates the possibility for misunderstandings and helps to ensure a shared vision.