Logic Pro has had Varispeed built in for quite some time. 
Awesome implementation as well. You can choose to affect speed only or pitch as well.
For instance, slow it down to be able to do that almost impossible guitar solo.
Adjust pitch as well and double the guitar and you’ve got a magic sound for the guitar.
Or vocal. Or rap or…
Simply awesome for the pure joy of creativity.
I switch to Logic every now and then just to be able to do it.
Would love to see it in Cubase, though.