Ecommerce is the online purchasing and selling of goods and services via an ecommerce website. An ecommerce app development is a software programme that is especially developed to aid in or add functionality for designing ecommerce websites. Typically, ecommerce app development refers to the vast selection of accessible shopping cart programmes, as well as other software that integrates payment choices as plug-ins or as part of an overall web application. Shopping carts may only be added to websites created with software that was not intended specifically for ecommerce and has no ecommerce-specific functionality in its initial configuration.
Read here: Types of eCommerce Apps One Should Know