The term 'poor man' isn't very informative to me. Does that mean it has all the functionality but is free or does it mean has basic functionality and is free, or is cheaper?
I'm using it in the idiomatic English[0] sense, meaning a cheaper/inferior alternative. For any one of the examples, there are way better tools out there. But how many of those individual tools can be used to accomplish many different things?
[0] https://www.merriam-webster.com/dictionary/poor%20man%27s