Braille apps

Hi, a long time ago, I think their used be an app called Pocket Braille pro. In this app, I could type a letter or punctuation and get the dot positions for that symble. I have forgotten my advanced punctuation so, for example, I would type a @ symble in the search box and the app would tell me the braille dots. Apple unfortunately got rid of that app. It is no longer even in my purchased history. Is there any app that will do the same thing or something similar?