app 圖示大小

windows phone 8磚預設是Flip


WXGA resolution Tile sizes

	Flip and Cycle	Iconic
Small	159 × 159 pixels	110 × 110 pixels
Medium	336 × 336 pixels	202 × 202 pixels
Wide	691 × 336 pixels	N/A

程式圖示

• For Windows Phone OS 7.1 , a 62 x 62 pixel PNG image.
• For Windows Phone 8 , a 99 x 99 pixel PNG image.

 市集圖示
A 300 x 300 pixel, non-transparent PNG image. 


IOS
http://ivomynttinen.com/blog/the-ios-7-design-cheat-sheet/

Dimensions

Device	App Icon	AppStore Icon	Spotlight Icon	Settings Icon
iPhone 5	120x120 px	1024x1024 px	80x80 px	58x58 px
iPhone 4/4S	120x120 px	1024x1024 px	80x80 px	58x58 px
Retina iPad iPad 3, iPad 4	152x152 px	1024x1024 px	80x80 px	58x58 px
iPad Mini	76x76 px	512x512 px	40x40 px	29x29 px
iPad 1st and 2nd Generation	76x76 px	512x512 px	40x40 px	29x29 px

https://developer.apple.com/library/ios/documentation/userexperience/conceptual/mobilehig/IconMatrix.html

Table 39-1Size (in pixels) of custom icons and images

Description	Size for iPhone 5 and iPod touch (high resolution)	Size for iPhone and iPod touch (high resolution)	Size for iPad and iPad mini (high resolution)	Size for iPad 2 and iPad mini (standard resolution)
App icon (required for all apps)	120 x 120	120 x 120	152 x 152	76 x 76
App icon for the App Store (required for all apps)	1024 x 1024	1024 x 1024	1024 x 1024	1024 x 1024
Launch image (required for all apps)	640 x 1136	640 x 960	1536 x 2048 (portrait) 2048 x 1536 (landscape)	768 x 1024 (portrait) 1024 x 768 (landscape)
Spotlight search results icon (recommended)	80 x 80	80 x 80	80 x 80	40 x 40
Settings icon (recommended)	58 x 58	58 x 58	58 x 58	29 x 29
Toolbar and navigation bar icon (optional)	About 44 x 44	About 44 x 44	About 44 x 44	About 22 x 22
Tab bar icon (optional)	About 50 x 50 (maximum: 96 x 64)	About 50 x 50 (maximum: 96 x 64)	About 50 x 50 (maximum: 96 x 64)	About 25 x 25 (maximum: 48 x 32)
Default Newsstand cover icon for the App Store (required for Newsstand apps)	At least 1024 pixels on the longest edge	At least 1024 pixels on the longest edge	At least 1024 pixels on the longest edge	At least 512 pixels on the longest edge
Web clip icon (recommended for web apps and websites)	120 x 120	120 x 120	152 x 152	76 x 76