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Icon Sizes for iPhone, iPad, and iPod Apps
When releasing apps for current generations of Apple iPhone, iPad, and iPod devices, software developers must use a specific set of icons meeting Apple's stringent Custom Icon and Image Creation Guidelines. As a bare minimum, developers need an application icon and a launch image. However, Apple recommends that apps supply several additional images, such as an icon used by the system when displaying Spotlight search results and Settings.
When releasing apps for all generations of Apple iPhone, iPad, and iPod devices, application developers are required to use a certain set of images meeting Apple's stringent Custom Icon and Image Creation Guidelines. As a bare minimum, developers need an application icon and a launch image. However, Apple recommends that apps provide several additional images, such as an icon used by the system when displaying Spotlight search results and Settings. Apps that can open certain file types (such as documents, music, or video formats) will need graphics to represent their supported file formats. Most apps will also require a fair share of graphics to draw their navigation bars, tab bars and toolbars.
As a general rule, Apple imposes very strict requirements on how to implement these icons so that every app running on the iPhone, iPad, or iPod platform conforms to common specifications and visual guidelines. Specifications ensure that your app looks in line with apps offered by Apple and other developers.
The Retina Display: Making Icons That Look Great
Apple's innovative pixel-packed Retina display packs more dots into a small area than was possible just a few years ago. These high-resolution displays allow showing the highest definition graphics to display crisp images with the feel of dimensionality and depth. As such, Retina displays will demand higher resolution icons to be employed in navigation bars, toolbars, and tab bars. Texture-reach, highly detailed, and more realistic images with small elements and carvings will create the most pleasing effect of three-dimensionality and depth. To look good graphics on Retina displays, developers need their icons in resolutions of 60x60 pixels.
Icons for Navigation Bars, Toolbars, and Tab Bars
While, in general, apps can use artwork in any supported size or resolution, there are several common sizes your icons must conform to in order for the system to draw them properly in navigation bars, toolbars, and tab bars.
For iPhone and iPod touch toolbar and navigation bars, Apple specifies the icon sizes of 20 x 20 pixels (standard resolution) and 40 x 40 pixels (high resolution, for Retina displays). Toolbar and navigation bars in iPad apps employ 20 x 20 pixel versions exclusively.
Tab bar icons are specified in two resolutions. 30 x 30 pixel versions are used in tab bars displayed in iPad, iPhone and iPod touch apps in standard resolution. In addition, iPhone and iPod touch apps with the Retina display will benefit from using super-sized images in sizes of 60 x 60 pixels.
Stock Icons for iPhone, iPad, and iPod Navigation Bars, Toolbars, and Tab Bars
Aha-Soft provides a collection of readily available royalty-free icons conforming to Apple's navigation bar, toolbar and tab bar guidelines. App Tab Bar Icons for iPhone provide an easy way to produce great-looking navigation bars, toolbars, and tab bars in iPhone, iPad, and iPod apps. 120 unique app icons are provided in all standard sizes of 20x20, 30x30, 40x40, and 60x60 pixels. Each icon is provided in black and white versions. Raster PNG and PSD files and scalable vector AI, SVG, and PDF sources are provided.
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