Are you genuinely interested in his/her experience and having a conversation about it, or are you saying (as it seems to read), "How many apps have YOU developed?"
If it's the latter, you're being kind of a dick. Just saying.
As for answering the comment, it's really more of an ad hominem so that's why I wrote the snarky "That's interesting".
I am interested in what he developed though, especially as he's so sure of his one true way.
It was an invitation to provide details instead of ad hominem attacks (speaking of being kind of a dick). Because his native language isn't English, this got a little bit mangled. I already pointed that out to him.
Also he wanted to say he was the original author, and it ended up sounding like a line from an action movie.
If it makes you feel better, I'm a client side MVC zealot. For Aiur!