Just report them for copyright infringement. Apple will take the blatant cases down. The copy-cats that don't infringe are just a side effect of success, so... congrats?

Regarding Reddit, it's a great place to find users but also copy-cats. Stick to posting "I built a thing that solves a problem" and avoid the bragging "I made $N in N days" indie-hacker style. The latter doesn't help the app anyways.

Moat: there isn't one for a utility someone can build in a few days. It can still be a good business - you seem to have marketing savvy which is a big part of it.

One suggestion, on your homepage - the "See USB Connection Information in Action" the screenshots are much too small. Nice looking app!

Your advice on the Reddit posts is also spot on. It's a fine line to walk between sharing the journey and just attracting low-effort clones.

And I completely agree about the moat. For a utility like this, it really does come down to marketing, support, and just building a better, more polished user experience than the copycats are willing to.

Also, a huge thank you for the feedback on the homepage screenshots! That's a good fix, and you're 100% right, they are way too small. I'll get that updated in the next couple of days.

Appreciate you taking the time to write all that out, and thanks for the kind words about the app's design!