It feels like it was written by AI. Everything makes sense grammatically, but somehow it says very little in many words.

Or maybe I've just become too paranoid.

I'm new to blogging about marketing so just doing my best, I usually write about technical topics.

Happy to hear what I can improve for my next post, if you have advice.

Understood that you are not native english speaker and use AI to enhance the content. I would advise to ask AI to share some ways to make the content more concise and incorporate learnings from those suggestions rather than copying them directly. That would keep the human element still around.

These days, I personally find articles with minor grammatical errors more interesting than AI assisted/enhanced/corrected content, because AI generated content often comes off bland and loses the rawness of author's intentions. Just personal opinion of course. :)

It's ' -- the reviews show how' in the title instead of summarising how or even just not saying that that does it for me, I won't click something like that.

I see what you mean, I was trying to come up with a title that gets readers interested in reading the post, but I guess it came out too click-baity.

You could drop the “shows how” bit and go for something more direct: Analyzing the marketing tactics of an iOS app estimated to make $2m/mo

This user also posted the same article on the same website but with a different title, not 24h before this one.

I thought it's allowed to try to post the same article more than once no?

There is absolutely nothing wrong with trying different titles on a story.