Wanna move to Canada... What's​ your opinion about dev jobs there ?

Quick question to you guys and gals,

I really want to become an iOS app developer. I know it would be long and painful way to learn Objective-C (some say it looks like alien language compared to C). Swift is rather new, much easier to learn, but I know Objective-C is a must to be considered as true iOS dev.

The question is: is there such a need of iOS developers (I mean UK/Canada/US/Germany)?. I live in Poland and there's not much to do in iOS development (few job offers, everybody is hyped by JS and frameworks changing every year, some offers are often underpayed remote work for foreign clients). I am now 20 years old, still learning at Uni and not having any responsibilities, so I may go someday to UK for a year or two, since the market for iOS devs is more diversed and bigger than in Poland. I know I am complaining (most Poles do that), but I've learned English since I was 4 and it's a pity not to use it as a resource to get a better job offer than in my mother country.

Thanks for all the responses, especially from people working as iOS devs