I appreciate you having a go and it does look very attractive. It's not a problem I have but $5 is a reasonable request for something that gets the info into an understandable format for somebody.

I do think that small, single-purpose apps are probably the easiest lunch to eat. Narrowly scoped greenfield projects are where the LLMs seem to excel right now so that game seems like a race to the bottom.

As far as the cloning goes: your only recourse is probably the DMCA angle for the exact duplicate text. It's a shame they're so lazy as to straight copy it, but I suspect the response (if any) will be them lightly laundering it through ChatGPT so it's no longer the same.

Good luck! And I hope you find more useful ideas people might pay for