Few people here have their game in appstore.
Possibly more than you think. In the your creations check the stickies out, there are games in google play, on kongregate and in kickstarter.
There isn't a list of games on iPhone, but I bet there are some games released out there. It's hard to list without the developers telling us on the forums.
No forum where you can discuss how to market your game for example.
Once again, there isn't a specific forum dedicated to this topic because mostly topics have been discussed in Construct 2 general forum.
You may also want to check out the tutorials page and search for the word "publish". There are a few tutorials that deals with publishing your game on several platforms and making money about it.
Now it's true that if you have trouble with English, it may be a hard search/consultation.
Depending on your language, try to see if there is a non-English community for it out there and if you could obtain the informations you're seeking.