WhatsMany - Send personalised WhatsApp messages in bulk
Summari - Summari is a web and mobile app that can summarize long text articles into bullet points.
LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
WebBrevity.AI - Get the summarized text of blog/article on Internet with URL
Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!
Shortify - Privacy-focused summarizer that works in all your apps (text and video)