Here is the Retina App Tab Bar Icons collection, which will help each iPhone or iPad application developer get his GUI look better. The icons from this icon set can be used in navigation, tab bars and toolbars of iOS applications.

License type : Free to try. • Released : March 20, 2013 • Downloads : 78 • Cost : $49.00

A collection of over 130 free Metro-style icons for Windows system meets and exceeds the strict guidelines developed by Microsoft for operating system icons. The package contains 48x48 pixel images with a transparent background.

License type : Freeware. • Released : March 9, 2013 • Downloads : 79 • Cost : $0.00

A package of 281 aero-style icons for Windows 8 is a perfect choice for a busy Windows 8 developer. This product includes all the icons you will ever need to create a user interface in in accordance with strict Microsoft guidelines.

License type : Free to try. • Released : March 20, 2013 • Downloads : 84 • Cost : $99.00

Design professional looking ribbon-based interfaces with Ribbon Bar Icons! This huge collection includes 758 unique royalty-free images in countless variations to accommodate the many sizes, color resolutions and activities of the ribbon bar.

License type : Free to try. • Released : March 20, 2013 • Downloads : 87 • Cost : $99.95 Buy Cheap

A package of 184 aero-style people icons for Windows 8 is a perfect choice for a busy developer. This product includes all the icons you will ever need to create a user interface in an accordance with strict Microsoft guidelines.

License type : Free to try. • Released : March 9, 2013 • Downloads : 105 • Cost : $99.00

A package of 227 aero-style medical icons for Windows 8 is a perfect choice for a busy developer. This product includes all the icons you will ever need to create a user interface in an accordance with strict Microsoft guidelines.

License type : Free to try. • Released : March 20, 2013 • Downloads : 50 • Cost : $99.00

A package of nearly 700 white and colored png icons for Windows Phone meets and exceeds the strict guidelines for Windows Phone 7 and Windows 8 systems. The package includes transparent 48 x 48 images drawn in a central square of 26x26 pixels.

License type : Free to try. • Released : March 20, 2013 • Downloads : 109 • Cost : $99.00

A package of Metro-style icons for Windows Phone meets and exceeds the strict guidelines for Windows Phone 7 and Windows 8 systems. The set includes white and colored, transparent 48 x 48 images drawn in a central square of 26x26.

License type : Free to try. • Released : January 2, 2012 • Downloads : 118 • Cost : $79.00

A package of nearly 400 Metro-style icons for Windows Phone meets and exceeds the strict guidelines for Windows Phone 7 and Windows 8 systems. The package includes white, transparent 48 x 48 images drawn in a central square of 26x26 pixels.

License type : Free to try. • Released : March 20, 2013 • Downloads : 484 • Cost : $49.00

A package of nearly 500 white png icons for Windows Phone meets and exceeds the strict guidelines for Windows Phone 7 and Windows 8 systems. The package includes white, transparent 48 x 48 images drawn in a central square of 26x26 pixels.

License type : Free to try. • Released : March 20, 2013 • Downloads : 208 • Cost : $79.00

A collection of nearly 850 Metro-style icons for Windows Phone meets and exceeds the strict guidelines for Windows Phone 7 and Windows 8 systems. The collection includes white, transparent 48 x 48 images drawn in a central square of 26x26 pixels.

License type : Demo. • Released : March 20, 2013 • Downloads : 113 • Cost : $99.00

A set of nearly 550 white and colored business icons for Windows Phone meets and exceeds the strict guidelines for Windows Phone 7 and Windows 8 systems. The package includes transparent 48 x 48 images drawn in a central square of 26x26 pixels.

License type : Free to try. • Released : October 7, 2012 • Downloads : 61 • Cost : $99.00

Any Android application can start looking its best with the help of professional, intuitive menu icons. Our set of Android menu icons has been created to meet the Android's icon guidelines while presenting users with an appealing, easy style.

License type : Free to try. • Released : July 31, 2013 • Downloads : 136 • Cost : $49.00

Large Symbol Icons package of professionally drawn clipart and basic toolbar icons. Suitable for any application, user interface (UI icons), these icons are ideal for web design (social networking and business use) and in the creation of templates.

License type : Free to try. • Released : March 12, 2013 • Downloads : 86 • Cost : $49.00

Icon Locator is a handy tool for extracting icons from almost any location, be it a local folder, Windows, a zip-archive, a Mac OS icon file or even a website. You can also rejuvenate the look of your desktop with new icons in a couple of clicks.

License type : Free to try. • Released : July 27, 2011 • Downloads : 57 • Cost : $19.95

Everything there is to New Year is presented in this exceptional clipart. It was specially crafted to bring you into a holiday mood.

License type : Freeware. • Released : March 20, 2013 • Downloads : 81 • Cost : $0.00

The packages contains all products in Icon Collections.Next-generation Design and WPF files for web and Windows.

License type : Free to try. • Released : July 26, 2011 • Downloads : 58 • Cost : $385.00 Buy Cheap

Large Business Icons is a set of stock icons that includes a variety of images related to accounting and business. Each image is provided in 6 resolutions and 4 file formats (GIF, PNG, ICO and BMP). You can use these icons for web design.

License type : Free to try. • Released : March 11, 2013 • Downloads : 120 • Cost : $49.00

People Icons for Vista depict people of various jobs, groups and family status. They are crafted in Vista style and come with or without shadows. Icons are delivered in various formats in sizes 16x16, 24x24, 32x32 and 48x48 in 256 colors and 32-bit.

License type : Demo. • Released : July 25, 2011 • Downloads : 50 • Cost : $129.00 Buy Cheap

Here is a Toolbar Icons for iPhone collection, which will help each iPhone or iPad application developer get his GUI in order. The icons from this set can be used in navigation, tab bars and toolbars of iOS applications.

License type : Free to try. • Released : March 10, 2013 • Downloads : 61 • Cost : $99.00

65 images to help developers implement stylish navigation bars, toolbars, and tab bars for iPhone, iPad, and iPod hotel apps. Hotel App Tab Bar Icons for iOS come in different sizes, in raster and scalable vector formats with variable prominence.

License type : Demo. • Released : March 12, 2013 • Downloads : 97 • Cost : $49.00

Developing a software is a serious task. It requires some thought, skill, and, of course, a bright set of icons to be used for buttons, toolbars etc. Download our 256x256 Free Application Icons set and see it improve your work instantly.

License type : Freeware. • Released : July 9, 2011 • Downloads : 56 • Cost : $0.00

Football team logos of the national league of Argentina. Developers and designers with a unified programming model for building rich Windows smart client user experiences that incorporate user interface, media, web and documents.

License type : Free to try. • Released : July 4, 2011 • Downloads : 58 • Cost : $50.00 Buy Cheap

193 images to help iOS developers implement stylish navigation bars, toolbars, and tab bars for iPhone, iPad, and iPod business apps. Business App Tab Bar Icons come in different sizes, in raster and scalable vector formats with variable prominence.

License type : Free to try. • Released : March 12, 2013 • Downloads : 77 • Cost : $49.00

This free icon set of Free Game Icons offers game developers a variety of images that will come handy for all the kinds of computer games you can imagine. It includes icons for Lock, Door, Apple, Chain, Jester, Wizard, and many more.

License type : Freeware. • Released : July 31, 2013 • Downloads : 76 • Cost : $0.00

If you need a great-looking set of toolbar and menu icons for your new database application, make sure to try Glossy Data Icons! It is a collection of pro-level and high-quality interface icons that will suit any modern database projects.

License type : Free to try. • Released : March 12, 2013 • Downloads : 94 • Cost : $129.95

Perfect Logistic Icons allow Web designers and application developers produce professional-looking products for logistics and storage specialists, government and business applications. Try this eye-catching set of logistics-related icons!

License type : Demo. • Released : March 20, 2013 • Downloads : 99 • Cost : $49.95

Large PNG Icons collection is the perfect choice for any web designer looking to maintain high quality UI graphical representation but looking to save time. Available sizes range from 16x16 to 512x512 pixels and file formats include ICO, BMP and PNG.

License type : Demo. • Released : March 20, 2013 • Downloads : 66 • Cost : $29.00 Buy Cheap

This icon set represents flags of countries, dependent territories, and special areas of geographical interest; international organizations, peoples and languages.

License type : Demo. • Released : June 4, 2011 • Downloads : 68 • Cost : $70.00 Buy Cheap

Large Black Icons is one of the most versatile icon set released. It contains images suitable for Windows, Linux MacOS and even iPhone applications. File formats provided include ICO, PNG and BMP, as well as PSD, SVG, PDF and AI vector formats.

License type : Demo. • Released : March 20, 2013 • Downloads : 75 • Cost : $49.00 Buy Cheap