Try again!!!!!!!!

So I downloaded it thinking, “ Now, I can change my keyboard fonts!” but, nothing is always like it seems. I downloaded it and I had to watch 5 ads to be able to us a font then I went to my messages to try it out but it did not work. Then, I found different fonts that would change the letters to be a different color, and then that did not work either. With the backgrounds, you have to buy them or have a free trial for a little bit. App developers, PLEASE let the app change the keyboard fonts on any message app or anything else than having to go to my settings to figure out how to transfer the