Time duration to build web applications depends on various factors such as complexity, modularity, a feature required, etc. Typically, web app developers take 2 to 3 weeks to build a small app, 3 to 6 weeks for a medium complex app, and 2 to 3 months or more for a highly advanced app. If you want an accurate estimate and free consultation based on your requirements, feel free to reach out to our expert developers.