It's curious for me, why apps don't launch with anticipation still? I'm sure it was a lot of user tests, but if you're curious as me how it might have look, so here is my vision. Also, the transition to the content of the app via alpha could look much natural, I guess.
Design, Animation: Alex Vasyutin
Tool: InVision Studio
Try it yourself, be my guest
It should be InVision Studio live prototype nearby.
Through the mobile might work not so well.