That looks very similar to MessagEase keyboard available for Android and iOS. It is pretty cool, I was an avid user when I had an Android phone and I was barely

That looks very similar to MessagEase keyboard available for Android and iOS. It is pretty cool, I was an avid user when I had an Android phone and I was barely making any typos. It’s very customizable and I particularly enjoyed clipboard integration. On iPhone third party keyboards don’t work as good so I had to stop using it.