In iOS 11, Apple added a way to move multiple apps at once, even on the iPhone:

  • Tap and hold on an app to enter Jiggly Mode™
  • Move the app just a little bit. This seems to prepare iOS for the next step
  • With a second finger, tap another app (tap as if you wanted to open and use the app; don’t press or move)
  • Tap as many apps as you want to move together
  • Move them, then let go

Note: On iPad, you can move individual apps without Jiggly Mode™. To move multiple apps, use the trick above.