The 9.3.5.6 version of Mac Bulk SMS Software – Professional 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. The actual developer of this software for Mac is SendSMSMessages.net. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Mac OS X Group Text Messaging Tool helps the user to increase the traffic to the business by sending bulk SMS. Software allows the user to export the sent text SMS in excel format. Following steps help the user to deliver text messages-
Step 1: Import the contacts in the software through the following ways-
1) Load the contacts from txt file or excel file.
2) Add or paste the contact numbers manually.
You may want to check out more software for Mac, such as Mac Bulk SMS Software - Professional, Bulk SMS Software – Professional or Mac Bulk SMS Software – Professional Edition, which might be related to Mac Bulk SMS Software – Professional.