LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
Mustbin - Everything in one place. Whenever you need it.
WhatsMany - Send personalised WhatsApp messages in bulk
Cervino - One app for everything you do
Promote Route - A Better WhatsApp™ Experience
ArchiviCo - An easy way to store your important documents