How to Change an iPhone App Description
- 1). Visit the iTunes Connect website and log into your account. Type the "Apple ID" and "Password." Then click the "Sign In" button.
- 2). Click the "Manage Your Applications" link on the iTunes Connect home page.
- 3). Locate the app you want to edit the description on. Click the app name to select it.
- 4). Click the "View Details" button for the version you want to update. On the "Version Details Page," click the "Edit" button.
- 5). Go to the "Metadata" section and click the "Edit" button next to it.
- 6). Type in new information for the "Description" field on the "Edit Metadata" page. Click the "Save" when done to finalize the description change.
Source...