I am searching for a free voice changer I can install on my mobile phone. There are a lot of options, but none of them have the capability of making me sound elderly. Does anyone have any ideas/opinions?
I haven’t had any luck either. I end up modifying my own voice, but it does damage after a while! 
I have looked into apps, and none of them are viable options.
ClownFish(?) or you can use your real voice, even if you sound like a kid they will still beleive you