Need a winning iPhone/iPad App Icon for new CheckBooks Business accounting application.

Accounting & Financial

CheckBooks Business is a iPhone/iPad app that let's small business owners track their banking transactions, accounts payable and receivables in a simple checkbook. The app takes care of all the accounting to let entrepreneurs focus on running their business. There will be integration with FreshBooks for invoicing customers.

I need an app Icon that is simple and conforms to Apple's recommendations. Design should be clean, 1 or 2 colours, identifiable on the home screen, or in a folder and ideally without words. It should convey what the app does so some initial thoughts would be to have a checkbook with a bar chart but feel free to be creative.

Current icon is 'ok' but am looking for something more professional, something that will work well with iOS7, something that will look good small in a folder or large on an iPad home screen. Attached is the current CheckBooks Mobile icon and some screen shots of the app.

Every design category has flexible pricing for all budgets. Icon or button starts at $199.