iconSweets 2 offers 372 icons for free, and the best part is that you can use them in your commercial apps. These are all monochrome icons, meaning that they can be used in conjunction with controls that apply their own colouring. Alternatively, if grayscale icons fit your app then they could be perfect. These icons work fantastically with tool bars and tab bars.

The icons comes in a Photoshop file (.psd) and you would need to extract each of the icons you need. There are quite a few categories of icons in the file, including:

• 112 General Icons: (file, save, add, upload, etc…)
• 35 Social Network Icons (facebook, twitter, etc…)
• 28 e-Commerce Icons (VISA, PayPal, Cart, etc…)
• 19 Media Icons: (QuickTime, Midi, DVD, etc…)
• 16 Users and User Groups Icons (Male, User, User Group, etc…)
• 15 Communication Icons: (Phone, Email, Text Message, etc…)
• 15 File Type Icons: (PDF, Zip, Word, Excel, etc…)
• 14 Arrow Icons: (Undo, Refresh, Shuffle, etc…)
• 13 Tool Icons: (Paint Brush, Cut, Measure, etc…)
• 11 Bags and Cases Icons (great for travel apps)
• 10 Chart Icons: (Pie Chart, Bar Graph, etc…)
• 10 Power Icons: (On Charge, 50% Battery, etc…)
• 10 Time and Date Icons: (clocks and calendars)
• 9 Clothing Icons (great for fashion apps)
• 9 Mobile Devices Icons: (iPhone, Android, etc…)
• 8 ID Icons: (Contact VCard, etc…)
• 8 Signals Icons: (WiFi, Bluetooth, etc…)
• 7 Display Option Icons: (Grid, List, Sidebar, etc…)
• 7 Settings Icons: (cogs and dials)
• 6 Video Definition Icons: (HD and SD)
• 5 CMS Icons: (WordPress, Joomla, etc…)
• 5 Location Icons: (Sign Post, Map Position, etc…)

You can download the set of icons at iconsweets2.com.