AnyMailFinder.com - Find anyone's email address
WhatsMany - Send personalised WhatsApp messages in bulk
HoverSignal - Increase your website's conversions with notifications
LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
Slik - Blazing fast, keyboard-driven, Apps and Web Apps launcher.
Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!