Xcode 5 organizer had a view which would list all the crash logs. and we could drag drop crash logs here. But since Xcode 6, I know they have moved devices out of organize a
For me the .crash file was enough. Without .dSYM file and .app file.
I ran these two commands on the mac where I build the archive and it worked:
export DEVELOPER_DIR="/Applications/Xcode.app/Contents/Developer"
/Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash /yourPath/crash1.crash > /yourPath/crash1_symbolicated.crash