The more letters you learn, the more words appears to challenge your new knowledge. It's starts very easy with only three letters. Only if you practice the first letters well, one after another new letter will pop up and the challenge will rise. But that's not all! Relating to the letters you are practicing, Words pop up on top to practice your gained knowledge immediately.
After a while you are ready to practice your own letters or all letters at once! You will be able to learn all the 33 georgian mchedruli alphabet and 123 Words! :-)