Even the simplest last mile delivery solution implies several types of applications to be built. It can be a responsive website as well as a progressive web application (PWA). Besides, a standalone last mile delivery module for an in-cloud SaaS platform can correspond to this category. Since no standard cost is available for any custom software product, the final price of the simplest last mile delivery app will depend on both the type of software and the number of features to be available in it. Without having such minimum info about the app, it would be unfair to indicate any certain figure.