For career development,is it better to focus on one platform development like iOS development or android development,and specialized it. Or to master both iOS and android development?
I did three iOS apps in the last 2 years, but I found in iOS area still many things are new to me. I worked for a small company, too many area need to handle,windows form c# ,asp.met,iOS,.etc. so I found although I can do many things, but none of area is expert level.