This is a great app that really increases safety for those of us who have occasional aphasia, whether due to autistic shutdowns, stroke, migraines or whatever reason. I don’t lose speech often, but having this on my phone does make me feel safer.
However, what if the person you’re trying to communicate with is illiterate? One time I used my iPad (before I ever heard of this app) to communicate when I had utterly lost my voice due to laryngitis, but the person I was trying to order fried chicken from couldn’t read. I mean, this is comic because no one dies for lack of chicken, but a speech option where your device speaks for you could really help.