Youll lose all privacy
It doesnt work unkess you give the app full access to everything you use or HAVE EVER USED your keyboard for. That includes email, passwords, etc. Too invasive for my taste.
There are 7 reviews (this makes 8) but I only saw 2, both of which were, surprise surprise, 5 stars. I guess transparency only works one way.
SavageDoc about
GIF Keyboard