Macro Deck - Use smartphone as macropad for pc
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
TouchPortal - Touch Portal is a companion app to control a PC or a Mac by using a deck of buttons to improve the workflow & productivity of game streamers, content creators and professionals.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Unified Remote - Unified Remote is a software app available for iPhone, Android, and Windows Phone mobile operating systems. It's designed to turn your smartphone into a universal remote. Read more about Unified Remote.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.