The Appshare Solution consists of three parts on a very high level

Appshare Services are used to facilitate features for the Appshare platform or specific Appshare apps. The most important service among the Appshare Services is the metadata store. This metadata store contains the information for the PWA to configure itself. The information consists of:
In principle, Appshare does not store any (sensitive) customer or user information. This information should be retrieved from customer-owned services. No user credentials are stored in Appshare Services. Authentication and identification must happen through customer-owned systems.
The Appshare PWA is an archive of files that must be hosted somewhere. It is downloaded to the device when the website is visited. It is called a PWA (Progressive Web App) because it is more than a classic web application.
Whenever you go to a website, it’s up to date, and your experience with that site can be as ephemeral or as permanent as you would like. Web applications can reach anyone, anywhere, on any device or operating system. The web’s ubiquity across devices and operating systems, its user-centered security model, and the fact that neither its specification nor its implementation is controlled by a single company make it a unique platform for software development.
Platform-specific applications are known for being incredibly rich and reliable. They’re ever-present—on home screens, docks, and taskbars. They work regardless of network connection. They launch in their own standalone experience. They can read and write files from the local file system, access hardware connected via USB, serial port, or bluetooth, and even interact with data stored on your device, such as contacts and calendar events. In these applications, you can do things such as take pictures, see currently playing songs listed on the home screen, or control song playback while in another app. Platform-specific applications feel like part of the device they run on.