Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
WhatsMany - Send personalised WhatsApp messages in bulk
DeskAlerts - Send alerts to any corporate device: PCs, phones, tablets, etc.
TextBlast Bulk SMS - Send personalized mass messages easily
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.