Steps to analyze crash report from apple

1. Copy the release .app file which was pushed to the appstore, the .dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER.
2. OPEN terminal application and go to the folder created above (using CD command)
3. atos -arch armv7 -o YOURAPP.app/YOURAPP MEMORY_LOCATION_OF_CRASH. The memory location should be the one at which the app crashed as per the report.

Ex: atos -arch armv7 -o 'app name.app'/'app name' 0x0003b508

This would show you the exact line, method name which resulted in crash.

Ex: [classname functionName:]; -510

Symbolicating IPA

if we use IPA for symbolicating - just rename the extention .ipa with .zip , extract it then we can get a Payload Folder which contain app. In this case we don't need .dSYM file.