The largest iOS communities in the world?

Question

Mobile development

Interested in popular resources, including those on which promo codes for eppa are periodically published.
Thanks in advance.

Answer 1

Sorry for the false start above ...
I can advise a resource - ifanzine.com/community
Also on - www.appletvhacks.net giveaway codes are often published

Answer 2

Check out these articles (and in general, the Development for Apple iOS section is full of information about
app
promotion
)

Answer 3

I can advice

Answer 4

I dare to suggest that "they" are all revolving around developer.apple.com, other projects are simply not competitive.
In any case, there are always resources like stackowerflow.com, which personally help me a lot.