The 1.47 version of CardBoardFishAlert for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X is an intellectual property of CardBoardFish. The software lies within Communication Tools, more precisely Texting & Video calls. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Quickly send SMS text messages from the dashboard to more than 700 mobile networks in over 200 countries. Includes phonebook with vCard import, inbox, message history and custom sender ID. Delivery receipts are displayed on your desktop if requested. Send texts of up to 459 characters in length and message up to 10 recipients at the same time.
You may want to check out more Mac applications, such as X-Lite 3, Skype2Prowl 2 or iChatMonitor 3, which might be similar to CardBoardFishAlert.