How long it takes to develop an app depends on the purpose and functionality of the app, how it's being developed, and how your customers intend to use it. With this in mind, mobile app development can take a little as 2-3 weeks or as long as one year.
Apps with intricate features or apps designed for multiple operating systems like Android and iOS, tend to take longer to build. They fall in the multiple months to one-year timeframes, depending on complexity. For apps like this, we recommend hiring an app development company.
Some apps can be developed in as little as 2 or 3 weeks, but they offer little complexity and fewer features than an app built using a more advanced framework and programming language. DIY app builder software is popular for apps built in a short time frame. You can use pre programmed templates to build a simple app quickly.