Cost to build an app for an online bookstore
Publisher, customer, and admin are the critical panels on the mobile app and website for bookstores. SEO tools and email marketing features must support your mobile bookstore app.

The operating system, location, team size, features, time, and other characteristics necessary to develop an advanced degree of application all play a significant role in determining the ultimate cost.

Generally speaking, the anticipated development cost for a bookstore app is $60000 for cross-platform and $40000 for a single platform.

The location of the organization affects development costs as well.

link - https://www.appsrhino.com/blogs/what-is-the-cost-of-developing-a-book-store-app