Link to Specific app in App Store

Find your App URL:
1. open iTunes
2. Search for your app
3. Right click on app name to copy the URL

URL format:
https://itunes.apple.com/us/app/hu-li-xue-lu-xiang/id477426168?mt=8

or
http://appstore.com/englishwritingskillsfortheworkplace

URL won't be available until app approved in App Store

or
use iTunes Link Maker https://linkmaker.itunes.apple.com/us/