Snapchat has a profile URL https://www.snapchat.com/add/username
QQ and WeChat used to have URL schemes:
http://weixin.qq.com/r/WeChatIDgoeshere
icq:message?uin=ICQIDgoeshere
None of them work - they either just open the app or open the google play app store - not the profile or messaging activity windows - on Android.
What are the QQ and WeChat URL schemes or URL to profiles?
