Latest questions about "samsung note 3"

I have been trying to download this app on my Android phone, Samsung Note 3, but when I do a window pops up and says "Unfortunatley Nviewer has stoppped" it then gives me two options which are...

I get to 80 percent in scan and it just stops than either disconnects or it says it need to be roots or the device is not compatible.

I want to download an APK for Astro on the Go, but it says my phone is not compatible. I already upgraded to 4.4 KitKat version. How to install it?

Why large video files can't be downloaded on my Samsung Note III? Is there something that I need to do?

How to get access key for Polaris Office? I am using a Samsung Note 3.

I have downloaded the charts I want with an Android application on my Samsung Note 3, but I hit the download button 4 times. So, how do I erase the extra files?