Why is the price difference of apple products in different countries? For example in UAE price is different as compared to Germany?

Obviously all the answers up here are true.. but I think that was not the real meaning behind the question.
Every country has different currencies that not only convert differently to others but have a different and relative value for the inhabitants. For example although Forex says 1,3$ = 1€ for the average European and American 1$=1€.. that means that roughly inside your country what you buy inUS for 1$ you get in Europe for 1€ (ex: McDonalds hamburger).
Also each country has it's own taxes, different renting prices (for apple store), different VAT, etc...

But the real question is. Is Apple NEUTRAL to market conditions?
This means... does Apple adapt their margin on products to local conditions or not?
To make it simple... Let's say Apple ... everything considered... gets 100$ for an iPhone sold in US... Will Apple fix their price in other countries so that, after paying local taxes, local costs, etc... still.. for each iPhone they earn 100$ ??
Or they have different market strategies such as rising the prices in countries where people are richer and more likely to buy iPhones even if "overcharged"? Or on the other side.. do they lower prices in poor countries (obviously not under production cost) to help locals buy in Iphone?
I think that Apple is doing their best to stay neutral to the market.. that is... We want 100$ at the end of the day.. whatever...
So we have paradoxes because in some countries iPhone costs more while in these countries people earn less (and I think this is not random.. but happens because.. usually.. countries with more regulations and taxes are also countries with lower wages... but that's politics!)

Here is a small comparison of iPhone 6 (16 Gb version) prices:

USA 550€........................ Average GDP per person 51.704 $ (calculated with California sales tax)

Switzerland 629 €............ Average GDP per person 44.864$

United Kingdom 687€....... Average GDP per person 36.569 $Gerany 699€.................... Average GDP per person 38.666 $
France 709€................... Average GDP per person 35.295 $
Italy 729€........................Average GDP per person 29.812 $

As you can see Apple seems not to care about living conditions in the country or about average wages etc.. they just have their price adjusted to local regulations and taxes. Europe has 2years warranty service for items sold in Apple Stores (and 1 for items sold in other stores where Apple is responsible only for the first year). We also have some other taxes... For example, here in Italy, we have a tax on hard drives (goes by the Gbyte) that affects any multimedia product. Tax is meant to finance artists whom you are supposedly "stealing" by having unauthorised copies on your portable device... (I know.. is ridiculous). Etc...

Because they are different markets, with different cost overheads and different taxing structures. Other than that, thnis is not a question any user on this forum would be able to answer (you are not addressing Apple; this is a user to user forum).

Prices for most all products are different in different countries.

Why do you find this odd?

There are countless reasons that prices vary by market - market conditions, regulatory costs, taxes, tariffs, cost of facilities, wages, legal risk, market risk, size of the market, and many more