Editor for drawing application logic?

Question

Software and Internet Services

Somehow I saw a program from a colleague (long ago) where he drew business logic in blocks like this

. Here's the question, what is it called.
You just need to "draw" often, it would be cool to have a tool for this

Answer 1

https://www.draw.io

Answer 2

https://balsamiq.com/products/mockups/
sold on rutracker