Hi, that's a good question that's hard to answer unequivocally. But I can tell you that the most important aspect in development is testing your application. You can build an application and if it doesn't work or has bugs, nobody wants it. That's the reason why I found a company that helps me with this and that's https://www.avenga.com/our-expertise/quality-assurance-and-testing-services/. I liked how quickly and efficiently they did their job since I was short on time and needed to launch the project.
In short, you should not skimp on software testing because it affects the subsequent success of the product.