Is it possible to run apk files on iphone?

I want to run apk files on my iphone but can I do that. If I can't then is there a app that's like that.

No ios file is (.ipa)you have to jailbreak your iphone

No! Apk is fir andoid as ipa is for apple. The only thing you can do is finding the same app, but ipa instead of apk.