We (FlickBoard) do not track you, however possible.
The keyboard does not save anything you type, even locally.
When you install FlickBoard through a marketplace (such as Google Play), the marketplace will usually connect that to your marketplace user account, as well as generic identifiers such as your Android version and device model.
Additionally, Google Play will collect crash logs when the app crashes or freezes, and forward them to us. This is not something we can control or disable.