PWA application for analyzing and comparing metrics taken from a connected data source - relational or object database (data model is fixed, but the application mechanism must be prepared for the data to be displayed on a relational database - e.g. MySQL - or on an object database - e.g. . Firebase). From the application level, the user can view the metrics, filter by a given date, and compare the metrics for different users. The preferred platform for the presentation of metrics is https://grafana.com/. The project must be expandable with additional metrics as needed.