I have already done some research on identifying crash logs but couldn\'t find solution:
Here are my references:
http://www.raywenderlich.com/23704/demystifying-
No, Apple will probably get the crash too and reject your app (it's a risk).
About the crash, it's hard to say, you'll have to run the app from XCode and check there where the crash was.
If it's a memory issue, profile the app from XCode and you'll see there which component is crashing.