ArcGIS offers many templates and app builders that allow you to build and deploy an app very quickly by writing little to no code. Start with a template, configure it with your GIS assets, and deploy it. You can customize it further with additional configuration or by coding your own extensions.
The choice of template or app builder depends on your target audience, your app requirements, and the level of customization you wish to control.
ArcGIS templates and app builders are intended for GIS professionals, designers, new developers, and hobbyists who want to deploy an app quickly from a select set of preexisting configurations.
Build your app to run on native desktop and mobile devices, including iOS, Android, Windows, macOS, and Linux. Templates make it quick and easy. Use your coding skills to further customize your apps.