It is no different than clicking on any other hyperlink.
The main difference with this App is that because it isn't registered with Apple or Google it requires extra permission for you to accept it on your device.
I give you that permission
In this instance the link goes to http://highwaywanderers.net/-OZERVNews.apk , so you could click on that link with your tablet or smart phone browser, but do not bother to download that to your computer as it will only run on android device.
