•Open the application menu, tap Preferences & Accounts, and tap Add Credit Card.
3Enter your HP webOS Account password and tap Submit.
4Tap OK to verify your email address, or tap Change Email Address to enter a different one. Purchase receipts are sent to the address shown here.
5Select your billing country and credit card type. Enter your credit card and billing address details, and tap Done.
IMPORTANT Your credit card details are not stored on your device. They are encrypted and stored in your HP webOS Account in the cloud.
Set billing account preferences
1Open HP App Catalog 
.
2Open the application menu and tap Preferences & Accounts.
3Under Password is Required, select one of the following:
Once Every 4 Hours: You must enter your password the first time you make a purchase. If you make any other purchases within four hours, you don’t need to enter your password again. After four hours, you enter your password again for the first purchase, which starts a new
Every Purchase: You must enter your password for each purchase, regardless of the time interval.
4Under Send Receipts, enter the email address where you want to receive receipts for App Catalog purchases. This option appears only if you have a billing account set up.
Update or delete a billing account
1Open HP App Catalog 
.
2Open the application menu and tap Preferences & Accounts.
3To change credit card information: Tap the credit card name.
4To change the password requirements or receipt email: Tap the current entry under Password Is Required or Send Receipts, and select a new password requirement or enter a new email address.
5If prompted, enter your HP webOS Account password and tap Submit.
6Do one of the following:
•To edit the account information: Change the information as needed and tap Done.
•To delete the account information: Tap Remove Credit Card. Tap Remove Credit Card again to confirm.
Manage applications with Software Manager
Use Software Manager to work with applications and background services that you add to your device.
Chapter 12 : HP webOS App Catalog and Software Manager 139