It wasn't...
Now you grab an iPod and istopmotion, you point the ipod at the scene, arrange your toys, and press the button. It snaps a shot. You can judge your framing, exposure, lighting etc. immediately.
You get onion-skinning so you can see how much you have moved the items, you can preview the movement that has happened so far, you can use another iOS device as the trigger so you aren't touching the one filming. You can delete a frame if your hand was in shot or something went wrong.
It is *so* much easier now.
Before you didn't know how the thing was going to look until a few weeks later when the film came back in the post.