Are the main apps people use just as good on android as they are on iphone ios?

So what i mean is the main apps that people use (facebook, twitter, instagram) and some of the popular games and sport/shopping apps (ebay/amazon) (sky sports/espn) i know they are good on iphone ios but are they good on android?

i'm can't decide if to get iphone 5 or galaxy s4 and i suppose its come down to apps

Get the s4. Android has a great amount of apps that run well on anything. Also you can easily get emulators and customizations.

Yes. Get a galaxy s4. You won't regret it

They are good, but not as good.

iOS also has the majority in comparison.

Apps are always released on iphone first, and updates always go to iphone first (this is because iphone apps make far more money then any other platform, and people also use iphones far more then other platforms).
Its also common to find the same apps on both platforms, and then realize the android version is far outdated. Seen this multiples times now.

Best security by far is also iphone.

The android version is just as good as the apple version and in some cases better and do more. I have some android apps and the apple app for the same program on my ipad and galaxy phone but the android app allows me to do more then the apple apps does due to the apple restrictions. Also many apps that are pay apps in iTunes are free in the android play store.

For example the program called bump on androids allows me to share things like apps to other devices and the apple version does not allow it.

Besides the app issue the galaxy phones are better then the iPhones and the galaxy 3 is the same generation as the iPhone 5 the galaxy 4 is newer and does way more then anything currently on the market.