CAT - Cellular Authentication Token is a free passwords manager for OTPs (One Time Passwords) and Fixed Passwords. While it can be used on its own as a Passwords Management app, it was created as part of Mega AS Ltd Identities Management solution which is available for download at http://www.megaas.com. Using the CAT App You can manage at the same place all your passwords. The OTPs generated on the cellular follow OATH convention. They are authenticated at the web site or server by the CAT Auth