It varies on client expectations. Usually, an app can be built within 2 weeks – 6 months. App developing has some parameters to finalize any and those are basically a platform, screen size, features, budget, skills, expertise, development process, etc. if the platform is gigantic and vivid, normally it takes some time. Screen size isn’t that time-consuming but important for tablet versions. As many features so are the prolonging. The budget is a good factor. Many projects could be half-done due to a lack of budget. Skills, expertise, and development process are stick to one another hence these are a bit similar and flow parallelly.