To download mobile application for window 7 and window 7 professional you must understand the concept of version as in professional only office work and licensed application is used in case of windows 7 ultimate you can use it for home addition as well as office uses
To download 9app in both versions you need to first go to website http://9app.co.in
No click on category desktop or Pc in the webpage.
Go to section “download 9apps for Windows”
Click on the link download button and the browser will show the icon of file transfer.
Go to the path “my computer “ >> Click your profile icon >> Go to download folder
In this folder you will find 9app apk file >> Click on this APK file >>
It will ask you to tick mark on term and condition >> check the box
Click next button to process
Now use ultimate apps for free with the help of 9app