Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!
Kannel - Open Source WAP and SMS Gateway
WhatsMany - Send personalised WhatsApp messages in bulk
Ozeki NG SMS Gateway - Ozeki NG SMS Gateway is a powerful, reliable and flexible SMS Gateway application.
TextBlast Bulk SMS - Send personalized mass messages easily
KAPSYSTEM - KAP Computer Solutions Pvt. Ltd.,