Is there a real “Gmail Tap” app?

Question

Gmail Tap, one of Google's April fools, would give the phone a three-keys Morse keyboard. Is there a way to get this functionality for real, preferably for input to any fields?

Answer 1

Yes, there is: https://play.google.com/store/apps/details?id=com.rgam.morsekeyboard

Answer 2

There is another one: Morse Code Keyboard