WhatsMany - Send personalised WhatsApp messages in bulk
AiCMS - Page description
LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
ONESolution - ONESolution streamlines communications between multiple responding agencies, while managing collaboration and operational costs.
Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!
OnBase by Hyland - OnBase by Hyland is an enterprise content management platform that offers a new way to make your information as secure and available as possible, at all times, across all your channels.