Get a PC version of the app. However there was a whole load of spammers spamming Whatsit for the PC. As you can imagine that was just spam and worse. Many were full of nasty spyware or malware.
Your second question is possible with the Android Dev Kit. https://developer.android.com/sdk/index.html
One of the really nifty tools is to hook up your android on USB and it's screen and control are on your PC. Super access and free too.
as we can access whatsit in our computer .
how we can acess our mobile android in computer?