With apps for Google Chrome, you can do things like create documents, edit photos, and listen to music. They’re like desktop software programs you install on your computer. The main difference is that you use apps directly within your browser. If you use Gmail, Google Maps, or sites like Pandora, you're already using apps.
, on the other hand, affects something global on your browser. For instance, an extension may add the ability to save items to your Amazon.com wish list. When you install the extension, that feature is available on every single site you visit, not just on Amazon.com. Extensions use downloaded components to modify your browser.
How do I use the Chrome Store?