LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
Tweet Tray - Tweet quickly from your desktop without any distractions.
SuperDMs - SuperDMs helps you grow your following by sending bulk DMs to your tweet responders.
Typefully - Write & publish great tweets, without distractions
WhatsMany - Send personalised WhatsApp messages in bulk
Minimal Twitter - A distraction-free browsing experience for the new Twitter