Progressive Web application, progressive Web application is a relatively new type of Web application, whose behavior is similar to native application and generally better than native application. They are Web applications that follow a slightly different approach and involve a set of additional technologies, such as service workers, checklists, and push notifications. Progressive Web applications can be downloaded to your device and stored on your home screen, making them accessible and "local like", and unlike Web applications, they can be accessed and used offline..

A relatively comprehensive technical transformation and usability improvement have been made for the tracking solution of complex fitness activities used by more than 10000 people. The solution collects activity statistics from smart sensors for further analysis, and supports two-way data transfer between portals, applications, and devices.

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