Do they have an app for that ?

There is an app for that.

There are “smart” washers and dryers on the market one can control/check from one’s phone

I’d like to have an app that mutes anybody else’s intrusively loud music or noise.

That is the Smith and Wesson app.

I’d like an app that randomizes my information but still allows me to use the desired function
For example. Imagine I want the flashlight app on my phone to simply turn it on and off.
However the app requires permission to access my contacts, storage, and location.
I would like to turn on my Scramble app and it would block or scramble my information while letting the flashlight app think it is real.

I would like an app that seeks out and destroys apps.

I’d like an app that lets me shop and filter by material. I loathe polyester and most synthetic fibers.