Singapore may not be the best place for iOS job offers. As it stands, Jobspotting counts only 11. Have you tried neighbouring regions? The most common categories in this field are at the current time Design and Public Relations. Are you up-to-date with skills like Swift (programming language), Objective-C, or App Store? They're in demand in this area.
It's a junior applicants market at the current time, with 4 of available iOS jobs seeking applicants who can learn on the job! While startup jobs are always in demand, startups are also crying out for iOS applicants. 62% of companies published one of these job offers. At the top of the page, you can see a map of offices in the region.