MorseZapp is continually improving. Recently, we've added the ability to change the tone frequency that you hear when playing the game. Just go into settings to change it to anything that sounds right to you.
We are also working on some new challenging levels. The Speed Challenge packages will be continuous flowing letters, the entire alphabet, but very fast. The different speed packages will drop the letters faster, and challenge your ability to tap out the morse code before it hits the bottom.
Check out MorseZapp on the App Store at https://apple.co/2zaogtZ. As always, we are happy to hear from our users. If you have an idea for a word package, let us know.