You can install this website on your device. Progressive Web Apps "websites that took all their vitamins", can be installed as you would a "native" app from Google Play or the iTunes Store. The website will load faster, and much of it will work offline or on bad connections. PWAs work best with Chrome but are also supported by Firefox, Edge (the latest Chromium based version) and Safari.
These steps will add an app icon to your home page / home screen
Mobile devices using Android:
Almost any version of Android is OK, but you need at least version 57 of Chrome.
With Chrome on mobile, a banner will appear at the bottom of the screen, tap it, then next screen. An icon will appear just like a "native" app.
Chrome on laptop, desktop
In the address bar click on the circled + symbol.
Mobile devices using Safari
iOS devices only, minimum version is 11.3 (iPhone 6s and later)
Tap the Share button in Safari for the PWA you're using.
Tap the icon labeled Add to Home Screen.
Tap Add in the upper-right corner.
Using Firefox on Mobile or Desktop
Click or touch the home icon (with + in it)
Using Microsoft Edge
Windows 10 and new Microsoft Edge based on Chromium required.
You will see a + button in the Address bar. Select it to get a pop up asking you if you want to install the Progressive Web app.