This, of course, is a useful application, it will not be superfluous even for personal needs, for example, to control payments and costs. Moreover, it is worth starting the application if you, for example, have your own Internet business. How to do this correctly, you can read on the blog https://devoxsoftware.com/blog/guide-to-creating-your-personal-finance-app/ And seek help from the application of the application better to developers specialists.