Progressive web app (PWA)

PWA is an app that is build and lives on a web, but function more like a native application. It is load like normal web app, but provides more functionality.

In 2015, designer Frances Berriman and Google Chrome engineer Alex Russell coined the term “progressive web apps” to describe apps taking advantage of new features supported by modern browsers that let users upgrade web apps to progressive web applications in their native operating system.

PWA is not a language or programming language, it is a set of best practices that ensures that a web application works and looks like any desktop or mobile application.
The experience user has is the same as working on native application written for a device.

There are several advantages, the most important one is the experience of use. For PWA internet speed is not important (they can also be used in offline mode), the connection is secure due to HTTPS use, the application is responsive and, once written,
can be used on a wide range of devices. Updates are invisible to users, they are easy to download and also install because they are independent of services such as AppStore and PlayStore.

Such applications constantly provide fast work, from the moment the user downloads them, to every interaction in them. They can fully behave like classic applications, which means that they work even when there is no active Internet connection.

Creating a PWA application is simpler than a native application for a specific device. In essence, it is a site to which a manifest file has been added, in which the settings related to the installation of the application, information about the name of the application,
icons, images, JS and CSS files on which the application works.

The second part of the development is the creation of a service worker, most often Javasvcript programs that act as an intermediary between the application and the database. Those data from the site are cached into the application and thus enable offline work as well
updating procedures and notifications that users will receive. In addition to notifications, unlike classic websites, PWA can also use sensors from the phone (camera, gyroscope, gps) if necessary for the operation of the application.

Therefore, creating PWA applications is relatively fast, because the existing site is adapted. It still needs to have a couple of predispositions for this to be done successfully. The most important thing is that the site is made to be responsive and use the HTTPS communication protocol. Other functionalities can be added as needed.

In the last few years we have seen a huge expansion of websites that have been updated to be able to use PWA. One of the first apps of this type is Twitter. They did a survey and the results showed that users more often visit the site to stay on the page more often.

PWA becomes standard on the internet, hop on the train, contact us for possible cooperation.