When building apps, most startups face constraints corresponding to budget and resources. On the other hand, they need to compete with the big brands for delivering a sophisticated user experience. They need to take highly measured steps to prevent resource drainage and course correction while creating a product. This is why most startups rely on incremental development following the MVP approach and meticulous prototyping for app projects.
Besides relying on an MVP development approach and well-articulated design prototypes, startup app projects also look for expert development at a competitive rate. Their search for expertise and competitive development rates encourage them to outsource app development projects.