I need to download call screen locker pro [Paid App]

I need to download call screen locker pro [Paid App]
http://ift.tt/1PEStgc
I need this app to lock screen during phone calls, as my phone doesn`t lock call screen.And the app contains a lot of features in pro version.
Please your help

from xda-developers http://ift.tt/22NuVma
via IFTTT