You can add up to 10 contacts in the trial version.
Close call is a simple tool for keeping notes of all your contacts' addresses, telephone numbers, and email addresses. This app is very easy to use: You need to add a new contact and click the button to enter all the information in a disciplined fashion.
After adding it, you have to print the envelope with the contact's address, it makes it easier to send a letter. Close call is a small agenda that is easy to use. This is not its most comprehensive tool and does not offer the highest features, but it still works.