Application Installation process includes 2 major steps, one is application integration process and second is publishing mobile applications.

Application integration process involves integration of the nopSuite nopCommerce mobile application with your nopCommerce store. You need to buy our 100% free nopSuite front-end API for nopCommerce from our store. You can know more about how to integrate the application with your nopCommerce store. 

Publishing mobile applications requires an active Google PlayStore and Apple App Store account. You have to pay a one-time fee for activating the Google Developer Account and for Apple you have to pay an annual fee for the Apple developer account. You can know more about how to publish mobile applications in the preceding document.