I use Gravity Gesture, but it looks like that's no longer available. I'll do some digging and see if I can find an apk.
Edit: yeah, seems to have disappeared from Play Store and FDroid. There are sketchy apk hosting sites if you're into that, but there's gotta be a better way.
But now the college’s IT/security team doesn’t have to deal with that particular piece of spyware on their network, which is a step in the right direction.