Why is there no Translation App in AR?

is there any particular reason this hasn't been done? would be a useful tool to be able to live translate signs and book to your preferred language through the quest's cameras. I scoured the internet in search of any project like this, i tried using a translation app for android but it obviously doesn't have access to the cameras so it won't work. It would have to be an app directly made for the quest and sidequest doesn't offer anything like this, if anyone knows of something like this please let me know. I have a quest 3.