Norton Mobile Security on iPhone 5

Does anyone have good, clear instructions on how to get the Norton Mobile Security to work on the iPhone?  

The following is from a previous posting by -Vinod on 11-29-12.  Step 3 below doesn't seem to do anything except take me to the app download page.  Then I cannot go any further.  When I log into MyNortonAccount and click on the Download icon, it brings up the file NortonMobileSecurity-102.apk, which is a Android file, not a iOS file.  I have searched everywhere and I keep finding instructions for Android and nothing for the iPhone.

 

"If you have purchased any one of the above offerings, you should have a valid Norton Mobile Security entitlement.

 

If you have not registered your purchase, do the following:

  1. Go to the Norton Mobile Security website.
  2. On the top-right corner of the page, click Register.
  3. Click Register Your Purchase.
  4. Type your Norton Account email address and password and then click Sign In.
  5. Enter your NMS product key and click Verify to activate the subscription."