Google Apps is a suite of applications that is available to anyone who has a Google account. These apps include documents, spreadsheets, forms, presentation, websites, photos, etc.
If you are an individual, you have access to these apps for free. If you are a business, you will have to create an account for your business.
One of the things that makes this suite of applications useful is it allows you to expand what some of these apps can do. You can write scripts that interact with these applications, giving you flexibility on what you want.
If you are a business thinking of improving your productivity, feel free to contact us.