Which one is much more better phone? Iphone 5s And iphone 5s or Nokia lumia 520?

Please help
is Nokia Lumia is much more expensive or cheap?
is iphone 5s is better than Nokia lumia 520 or not

The 520 costs less than $100. The iPhone 5s costs $600.

The Nokia 520 is a basic (low end) Windows phone. It works, and well at that, but it isn't in the same category as an iPhone 5. The 5s is the current "top of the line" for Apple, more comparable to the Nokia 1020 or 1520.

Having said that, there's nothing wrong with the 520 if you just need a basic phone that runs Windows. If you want iOS, be prepared to pay a lot more for it.

IPhone 5s is better phone

Is Nokia Lumia is much more expensive or cheap?

Ans: You can find all ranges of prices in Nokia Lumia phone series

is iphone 5s is better than Nokia lumia 520 or not?

Ans: Ofcourse iphone 5s is better and expensive also. As Caoedhen said, Nokia Lumia 520 is low end windows phone and iphone 5s is current top Apple iphone.