You can install with .apk other store apps. The Google Play Store was not available application. You need a Android operating system phone or tablet. If you have iOS iPhone or iPad, cannot install application package. Apple Store may not available application.
Press hold on a Chrome.
Press App info. ℹ
Scroll down and press Install unknown apps.
Press Allow from this source on.
Press back arrow.
Press Open.
Search with app on Android or other store.
If you press download on a web or other store, Press Download.
If you see a warning message: "This type of file can harm your device. Do you want to keep [your application name] anyway?" then press OK. If you don't want to keep this application, then press Cancel.
Press Open. If you don't see a pop down message, press three dot, ➡ Press Downloads, ➡ Press your application download.
You can see pop up "Do you want to install this application?" Press Install.
When is ready to install, press Open.
Press hold on a Chrome.
Press App Info. ℹ
Scroll down and press Install unknown apps.
Press Allow from this source off.