What are the limitiations of iphones?

I wanna buy nexus 5 but some of my friend said that I should buy iPhone 5c i want a phone that should just have a good app and game store i have heard that you can jailbreak iPhone, what is that

Go with a galaxy s5 does everything every other phone can do except imessage but jailbreaking broke down is like this
apple tells your phone do things under their rules lets call their rules ab and c
when you jailbreak your phone you are telling you phone to do xyz a completly differnt set of "rules" yes its great to jailbreak it but you will void you warrenty once you do it and you might screw up your phone if you don't know what you are doing

Listen to those friends. Get an iPhone. (The 5S is better than the 5C if you're willing to pay a little more)

Iphone has the best apps and security, and iphones are not known to start lagging like other phones do. It also has imessage, Siri, Facetime, aluminum casing, slomotion video, and sapphire lens on both camera and fingerprint. It also has airdrop and call blocking and is also the only 64-bit phone on the market today. What you get is up to you of course.

IPhones have access to the best & pioneering App Store, so that should more than satisfy your needs.

Jailbreak is essentially a hack of the phone to expand its possibilities of it, though for most its not necessary.

Yes, it's true, you can jailbreak iPhone so you can download pretty much any apllication, but usually it's not necessary. You can find pretty much everything here: http://www.iosappstore.center/.