Applications like UDEMY include an enormous education market size and audience. And as apparent it is to every one of us about how prevalent e-learning is getting nowadays, such applications are getting an even bigger boom than the usual case.

The costing of such on demand mobile app development depends upon more than one factor involving the Business model to be used in it, the working platform, UI/UX, the payment ways to be integrated within it, and further customization.

Also the geographical area, layout, and the overall configuration play vital role on costing.

An approx idea one could envisage for an application like UDEMY to build is of around $8000 to $25000 depending upon the diversity one demands within the application.

Adding on integration and analytics into it would add up a few tons to it.

You can check on every other thing about development of an application like UDEMY here also for better understanding.