Pisth - Pisth is an open source SSH and SFTP client for iOS.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Prompt 2 by Panic - The best SSH client for iOS
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Dataplicity - Dataplicity is a remote terminal for your Pi.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.