EDIT: Updated for the new iPad retina display
Every time I have to make some icons for an app, I always have to go look up the sizes for each platform. So, I figured I’d make a post with the sizes (including actual-sized boxes, of course), and links to the relevant design documents from each manufacturer.
Apple and Google both provide guidelines for designing application icons, and it’s worth checking them both out. They have different approaches to icon composition, since iOS wants each icon to be inside a rounded-square box with a glossy highlight* and drop shadow, and Android encourages taking advantage of the alpha channel and using unique shapes.
- Custom Icon and Image Creation Guidelines – iOS Human Interface Guidelines
- Launcher Icons – Android Icon Design Guidelines
* Technically, you can turn off the glossy highlight on your iOS home screen icon, but most developers seem to leave it on.
||36px||1:1||Android ldpi (basically never used any more)|
||48px||4:3||Android mdpi (used on older phones and tablets)|
||57px||19:12||iPhone (non-retina display)|
||72px||2:1||iPad and Android hdpi (used on most modern phones)|
||96px||8:3||Android xhdpi (used on very new phones)|
||114px||19:6||iPhone 4+ (retina display)|
||144px||4:1||iPad 3+ (retina display)|