Hey @juschan0605 - thanks for the suggestion, as you can see from the posts above, this has been asked before.
We’d love to, but unfortunately we are required by Apple to have this bar at the bottom of the screen. If they ever change their requirements we’ll definitely look into getting rid of it.
This is why the bar does not appear at the bottom of the Android screen, because Google and Amazon don’t have this requirement.
This is also one of the reasons we’ve put so much effort into Web Preview and Publish to the Web. These features allow our users to test, publish and update their apps without having to go through any store.
Hope that helps!