The entry you have labeled as a Spinner on the Android side is a Picker.

http://developer.android.com/guide/topics/ui/controls/pickers.html

I’m not 100% sure, but it seems to me that you mixed up the pictures of the iOS 6 UIToolBar and the Android ActionBar Tabs.

This overview is really helpful – thank you!

my opinion, as you can read in my (german) blog…:

UiButtons:
In iOS6 the font is bold and easy to read. The bold letters provide a high contrast to the buttons background color.
In iOS7 the font is thin and due to the smaller kerning it is harder to read. The thin border shows only a small shadow which makes it harder to realize that this is a button and no textfield.
If you look through a pinhole, the iOS7 elements are harder to recognize.

UiStepper:
In iOS6 the – & + are thinner than in iOS7 which makes it harder to recognize / use, but the look provides a higher quality. the metal buttons are looking like real buttons. The iOS7 Buttons are using a high contrast but the look is cheap instead of simplified.

UISwitch:
iOS6 marks the switch with “on” and “off”. the larger width gives the user an higher comfort of sliding over these switches. a tap or a slide over these switches can change the state.
see http://www.live4this.com/DarshStuff/dieter_rams_photos/dieter_rams-10principles-05.jpg
iOS7 uses no marks that you cant really be sure if this is a switch or something other UI element. the background of the switch is the same color/ contrast like the background. the border is a thin light-grey line. the switch-way is shorter and its harder to use it with a slide. the switch-on animation is different to the switch-off animation. that makes no sense.
If you look through a pinhole, the iOS7 elements are harder to recognize.

UISlider:
iOS6 sliders are thicker which gives the user an easier look of the state. the sliderbutton is separated from the background with inner shadows.
iOS7 sliders are thiiner which makes it harder to realize the state. the sliderbutton is not cleary visible, only the bottom shadow makes it recognizable.

UISegmentedControl:
In iOS6 the Labels (“Proxy”) is darker and easier to separate from the buttons text. The Buttons inner shadows provides a clearly state (on/off). the button text is bold and good to read although the contrast from text to background is low (limited by the gradient).

UIMenuController:
iOS6 the text is bold and easy to read. the buttons are recognizalbe as button because of the gradient and shadows.
iOS7 uses thinner text which is harder to read. the buttons are flat and not like a button you know from other UIs. the text is vertically not centered.

UIPickerView & UIDatePicker:
iOS6 uses bold text. the selected entrys are covered by plexiglass. the not selected entrys are easy to read so that you can easily change the state.
iOS7 uses thin text. the selected entrys are easy to read but the not selected entrys are greyed out and displayed in perspective which makes it harder to read.
the list looks not like a round roll but like a rubberband with a small roll behind.
the “done” & “clear” button looks like a description text.

UITextField:
in iOS6 the Textfield are surrounded by a grey border. the white textfield separates clearly from the background. the “add photo” field is a rectangle, because every is a rectangle.
in iOS7 the textfield is white with a white background. you see no borders. if you want to add some contact information fields you don’t know where you can tap the field to start typing. the round photo is unlucky designed. it uses the sam width and height like in iOS6 but offers less information from the photo.

UINavigationBar:
in iOS6 the Navigationbar is heading the content with a high amount of contrast (to the content). the “back” button is great. its shaped like a real-world-button
and the left arrow show the user the way it guides.
in iOS7 the Navigation uses less contrast to the content, so the difference is not clearly seen. the text its bold and easy to read. but the kerning seems to be different to the buttons. the upper right button is even not designed like a button as the upper left “back” button. the left arrow is bolder than the text, it doesn’t fit the same look.

UIBarButtonItem:
in iOS6 the buttons are shaped like buttons. the icons are monochrome, but offers bold surfaces for an easy recognition.
in iOS7 the buttons are not separated from the background (flat) which makes not clear if it belongs to the background (e.g. text, symbols). the “reload” button is bolder than the “plus” button. it looks like both are in a different size

UITabBar:
iOS6 UITabBar Buttons are highlighted and colored. they separate clearly from the not selected entrys.
iOS7 UITabBar Buttons are not highlighted, only colored. it separates, but not clearly as in iOS 6. the not selected entrys are harder to ready because of lower contrast to the background.

UIToolBar:
the iOS6 UIToolBar separates clearly from the content because of the blue gradient and the darkgreyed border. the buttons are clerkly visible and easy to understand. the difference of meaning between the “share”, “bookmarks” and “tabs” is big. the “share” point to the right direction, which indicates a “forward” to someone (person) or something (service, e.g. printer).
in iOS7 the UIToolBar is only separated by a light-greyed border. the buttons are thin designed, not clearly recognizable and harder to understand
the “share” button is pointing in the upper direction which indicates an upload so somewhere (cloud etc.). but the recipient of an iMessage, AirDrop, Printer content is not in the cloud, its on earth.

UIActionSheet:
in iOS7 the UIActionsSheet looks like a background with some text. its not clearly visible whats a button and whats text.

UIScrollView:
the UIScrollview in iOS7 is much thinner than in iOS6. even the transparency / contrast to the background is higher / lower. harder to recognize…

UIPageControl:
its clearly better visible in iOS 7. in iOS 6 the dots are too small to tap / see.

UIRefreshControl:
this is my personally greatest disaster in iOS 7: i really felt in love with the rubber-like circle in iOS 6. the animation is great and a friend of mine (web- and interface-designer) totally freaked out as i showed it him the first time. this was genius!

controlcenter:
the lower buttons are rectangles with rounded corners, the upper buttons are cirlces. whats that!?
the indicator of the music slider is xx pixel width. how should i tap this one? why is this slider different from other sliders?

Homescreen:
the icons in the home screen are in bright colors (green, red, …) and in a flat design. the background looks transparent, the layers (notification center, control center) are giving a feeling of depth. flat and depth. bright and colorful and transparency. thats inconsistent.
The icons of iMessage, Phone and FaceTime (why do we need an extra FaceTime app!?) are signal-green and painted with the same gradient (dark bottom to light top). the space between the symbol and the icons border is different in the phone app. the black stocks icon burns in my eyes every time i see the homescreen. its like a hole in my display. the maps icon offers small details, the others icons not (e.g. camera). the weather app icon uses a different gradient (light bottom to dark top).
The red notification indicators in the upper right corner of every icon aren’t centered. the number seems to be a little bit too much right. the red circle is not a circle.
New Apps were bannered with a diagonal “new” flag in iOS 6, now there is a small, nearly invisible blue point left to the apps name.

generally:
its needless to say, that in iOS 7 its harder to understand whats a button or a text and whats content or UI. both user types will be struggling, the one who uses the iPhone since years/months and know the most parts of the UI and even the beginners. not everyone understands the meaning and sense of typography (e.g. what will a smaller kerning mean for me?).

iOS 7 introduced many many cool features and new APIs, but the flat UI is unbelievable bad. i cannot believe, that this is the result that apple would like to show the (dev-)world in a beta release. although its beta 1, this is not acceptable. MacBooks and iPhones aren’t flat, it’s a real 3 dimensional product which needs a real 3 dimensional user interface with lights, shadows and borders.

scott forstall seems to be an asshole in apples eyes, but not everything he created is bad now.

i would like to apologize for my bad english. i do my very best, but i need more practice… thats all, thank you!

Awesome!

Sure no problems I’ll do it later today.

Nice work guys. This is really helpful. – Ryan Allis, Connect

You’re confusing UILabel on iOS with UITextField I’m pretty sure, especially given the fact you’re comparing to TextField in Android. Otherwise, this is a pretty solid guide!

Really nice job !
If you could add BlackBerry 10 and Windows Phone 8 it would be awesome !

Nice work.
Missed UISplitViewController

Nice hair!

Interesting, thank you for sharing

that fontlab diamond button saved my day! thanks guys!

you should add skala preview to helpful apps