You don't understand how the Android updates work. Under Downloads your apps are listed, and if there are any apps, it will tell you, just like the iPhone app store. Can't be any simpler. Typically the apps will describe what the updates are as well, so you can decide if it's worthwhile to update or not.
Read here about the complexities Android developers face when developing apps:
Android’s Rapid Growth Has Some Developers Worried | Gadget Lab | Wired.com
I wouldn't want to update an app that works perfectly on my phone, only to get an update that fixes a bug on another phone, and have more lines of code / space taken up on my Android phone.
This is not like Windows / iPhone. An update may not be a good thing for your particular Android phone.