an anzan flash program with addition subtraction root multiplication division and I don’t know the name plus 2 squared
Maybe you are looking for the Memoriad Simulator and the Flash Anzan simulator from this page:
it has neither subtraction nor roots and potential
It has inexact square roots of 6-digit numbers to 8 significant figures.
But otherwise, yes it doesn’t have the other things you’re looking for.
You might like to try George Lane’s Pegasus spreadsheets (these have more fixed categories that could be helpful to you).
Otherwise what I do when training myself is to create my own trainer in a spreadsheet or using Python, and use that. I don’t understand exactly what you need though because it wasn’t a specific request.