Installing application on your smartphone or tablet may contain a security risk. The idea that we have several sources for applications and this allow attacker to create fake packages that can be used to infect victim devices.
Google play can be used to download required application but you will need to create an account in order to be able to install what you need. Good alternative is to consider APK downloader where it will act as a proxy and it will bring you the direct link to APK file. All what you need to do is to enter the URL for the application and you will get the direct link to the APK.
This can be a good alternative in case you are looking to install APK application without a Google play account. Also you can use the chrome extension to make the files downloaded and installed on any device.