TextBlast Bulk SMS - Send personalized mass messages easily
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!
DeskAlerts - Send alerts to any corporate device: PCs, phones, tablets, etc.
LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.