LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
Flare by GoDaddy - Discover, give feedback and support startup ideas
TextBlast Bulk SMS - Send personalized mass messages easily
Wittycircle - Networking tool for entrepreneurs, makers and curious minds.
Texted.io - Send text blasts to groups, receive individual replies
Little Inventors - Turn children's ideas into reality